Home / 38,120.16-52,608.24-21,355.68

Finding the Fourth Proportional to 38,120.16, 52,608.24 and 21,355.68

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Solution

The fourth proportional to 38,120.16, 52,608.24 and 21,355.68 is: 29,472.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.16 : 52,608.24 = 21,355.68 : x
  2. Step 2: Convert to fraction form
    38,120.16/52,608.24 = 21,355.68/x
  3. Step 3: Cross multiply
    38,120.16x = 52,608.24 × 21,355.68
  4. Step 4: Simplify right side
    38,120.16x = 1,123,484,738.80
  5. Step 5: Solve for x
    x = 1,123,484,738.80/38,120.16
  6. Step 6: Final answer
    x = 29,472.19

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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.