Home / 38,009.13-52,451.58-21,012.18

Finding the Fourth Proportional to 38,009.13, 52,451.58 and 21,012.18

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Solution

The fourth proportional to 38,009.13, 52,451.58 and 21,012.18 is: 28,996.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,009.13 : 52,451.58 = 21,012.18 : x
  2. Step 2: Convert to fraction form
    38,009.13/52,451.58 = 21,012.18/x
  3. Step 3: Cross multiply
    38,009.13x = 52,451.58 × 21,012.18
  4. Step 4: Simplify right side
    38,009.13x = 1,102,122,040.24
  5. Step 5: Solve for x
    x = 1,102,122,040.24/38,009.13
  6. Step 6: Final answer
    x = 28,996.24

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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.