Home / 38,085.28-52,557.36-21,089.92

Finding the Fourth Proportional to 38,085.28, 52,557.36 and 21,089.92

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Solution

The fourth proportional to 38,085.28, 52,557.36 and 21,089.92 is: 29,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,085.28 : 52,557.36 = 21,089.92 : x
  2. Step 2: Convert to fraction form
    38,085.28/52,557.36 = 21,089.92/x
  3. Step 3: Cross multiply
    38,085.28x = 52,557.36 × 21,089.92
  4. Step 4: Simplify right side
    38,085.28x = 1,108,430,517.81
  5. Step 5: Solve for x
    x = 1,108,430,517.81/38,085.28
  6. Step 6: Final answer
    x = 29,103.91

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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.