Home / 30,991.02-42,758.11-17,560.14

Finding the Fourth Proportional to 30,991.02, 42,758.11 and 17,560.14

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Solution

The fourth proportional to 30,991.02, 42,758.11 and 17,560.14 is: 24,227.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.02 : 42,758.11 = 17,560.14 : x
  2. Step 2: Convert to fraction form
    30,991.02/42,758.11 = 17,560.14/x
  3. Step 3: Cross multiply
    30,991.02x = 42,758.11 × 17,560.14
  4. Step 4: Simplify right side
    30,991.02x = 750,838,397.74
  5. Step 5: Solve for x
    x = 750,838,397.74/30,991.02
  6. Step 6: Final answer
    x = 24,227.61

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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.