Home / 38,468.28-53,088.92-21,475.84

Finding the Fourth Proportional to 38,468.28, 53,088.92 and 21,475.84

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Solution

The fourth proportional to 38,468.28, 53,088.92 and 21,475.84 is: 29,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,468.28 : 53,088.92 = 21,475.84 : x
  2. Step 2: Convert to fraction form
    38,468.28/53,088.92 = 21,475.84/x
  3. Step 3: Cross multiply
    38,468.28x = 53,088.92 × 21,475.84
  4. Step 4: Simplify right side
    38,468.28x = 1,140,129,151.69
  5. Step 5: Solve for x
    x = 1,140,129,151.69/38,468.28
  6. Step 6: Final answer
    x = 29,638.16

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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.