Home / 30,753.68-42,439.14-17,323.88

Finding the Fourth Proportional to 30,753.68, 42,439.14 and 17,323.88

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Solution

The fourth proportional to 30,753.68, 42,439.14 and 17,323.88 is: 23,906.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,753.68 : 42,439.14 = 17,323.88 : x
  2. Step 2: Convert to fraction form
    30,753.68/42,439.14 = 17,323.88/x
  3. Step 3: Cross multiply
    30,753.68x = 42,439.14 × 17,323.88
  4. Step 4: Simplify right side
    30,753.68x = 735,210,356.47
  5. Step 5: Solve for x
    x = 735,210,356.47/30,753.68
  6. Step 6: Final answer
    x = 23,906.42

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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.