Home / 38,111.20-52,589.18-21,111.19

Finding the Fourth Proportional to 38,111.20, 52,589.18 and 21,111.19

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Solution

The fourth proportional to 38,111.20, 52,589.18 and 21,111.19 is: 29,131.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.20 : 52,589.18 = 21,111.19 : x
  2. Step 2: Convert to fraction form
    38,111.20/52,589.18 = 21,111.19/x
  3. Step 3: Cross multiply
    38,111.20x = 52,589.18 × 21,111.19
  4. Step 4: Simplify right side
    38,111.20x = 1,110,220,092.23
  5. Step 5: Solve for x
    x = 1,110,220,092.23/38,111.20
  6. Step 6: Final answer
    x = 29,131.07

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Half scale
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Double scale
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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.