Home / 38,475.28-53,095.80-21,708.16

Finding the Fourth Proportional to 38,475.28, 53,095.80 and 21,708.16

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Solution

The fourth proportional to 38,475.28, 53,095.80 and 21,708.16 is: 29,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,475.28 : 53,095.80 = 21,708.16 : x
  2. Step 2: Convert to fraction form
    38,475.28/53,095.80 = 21,708.16/x
  3. Step 3: Cross multiply
    38,475.28x = 53,095.80 × 21,708.16
  4. Step 4: Simplify right side
    38,475.28x = 1,152,612,121.73
  5. Step 5: Solve for x
    x = 1,152,612,121.73/38,475.28
  6. Step 6: Final answer
    x = 29,957.21

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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.