Home / 42,380.28-63,574.12-15,726.56

Finding the Fourth Proportional to 42,380.28, 63,574.12 and 15,726.56

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Solution

The fourth proportional to 42,380.28, 63,574.12 and 15,726.56 is: 23,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,380.28 : 63,574.12 = 15,726.56 : x
  2. Step 2: Convert to fraction form
    42,380.28/63,574.12 = 15,726.56/x
  3. Step 3: Cross multiply
    42,380.28x = 63,574.12 × 15,726.56
  4. Step 4: Simplify right side
    42,380.28x = 999,802,212.63
  5. Step 5: Solve for x
    x = 999,802,212.63/42,380.28
  6. Step 6: Final answer
    x = 23,591.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.