Home / 28,229.47-38,956.67-15,654.22

Finding the Fourth Proportional to 28,229.47, 38,956.67 and 15,654.22

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Solution

The fourth proportional to 28,229.47, 38,956.67 and 15,654.22 is: 21,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.47 : 38,956.67 = 15,654.22 : x
  2. Step 2: Convert to fraction form
    28,229.47/38,956.67 = 15,654.22/x
  3. Step 3: Cross multiply
    28,229.47x = 38,956.67 × 15,654.22
  4. Step 4: Simplify right side
    28,229.47x = 609,836,165.69
  5. Step 5: Solve for x
    x = 609,836,165.69/28,229.47
  6. Step 6: Final answer
    x = 21,602.82

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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.