Home / 38,015.83-52,460.76-21,019.78

Finding the Fourth Proportional to 38,015.83, 52,460.76 and 21,019.78

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Solution

The fourth proportional to 38,015.83, 52,460.76 and 21,019.78 is: 29,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.83 : 52,460.76 = 21,019.78 : x
  2. Step 2: Convert to fraction form
    38,015.83/52,460.76 = 21,019.78/x
  3. Step 3: Cross multiply
    38,015.83x = 52,460.76 × 21,019.78
  4. Step 4: Simplify right side
    38,015.83x = 1,102,713,633.83
  5. Step 5: Solve for x
    x = 1,102,713,633.83/38,015.83
  6. Step 6: Final answer
    x = 29,006.70

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Half scale
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Double scale
Find fourth proportional to 38,016.83, 52,462.14 and 21,020.78
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.