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Finding the Fourth Proportional to 28,008.39, 38,654.24 and 16,074.39

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Solution

The fourth proportional to 28,008.39, 38,654.24 and 16,074.39 is: 22,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.39 : 38,654.24 = 16,074.39 : x
  2. Step 2: Convert to fraction form
    28,008.39/38,654.24 = 16,074.39/x
  3. Step 3: Cross multiply
    28,008.39x = 38,654.24 × 16,074.39
  4. Step 4: Simplify right side
    28,008.39x = 621,343,248.54
  5. Step 5: Solve for x
    x = 621,343,248.54/28,008.39
  6. Step 6: Final answer
    x = 22,184.18

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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.