Home / 30,517.47-42,118.11-17,770.88

Finding the Fourth Proportional to 30,517.47, 42,118.11 and 17,770.88

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Solution

The fourth proportional to 30,517.47, 42,118.11 and 17,770.88 is: 24,526.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,517.47 : 42,118.11 = 17,770.88 : x
  2. Step 2: Convert to fraction form
    30,517.47/42,118.11 = 17,770.88/x
  3. Step 3: Cross multiply
    30,517.47x = 42,118.11 × 17,770.88
  4. Step 4: Simplify right side
    30,517.47x = 748,475,668.05
  5. Step 5: Solve for x
    x = 748,475,668.05/30,517.47
  6. Step 6: Final answer
    x = 24,526.14

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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.