Home / 42,635.97-63,936.14-20,444.13

Finding the Fourth Proportional to 42,635.97, 63,936.14 and 20,444.13

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Solution

The fourth proportional to 42,635.97, 63,936.14 and 20,444.13 is: 30,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,635.97 : 63,936.14 = 20,444.13 : x
  2. Step 2: Convert to fraction form
    42,635.97/63,936.14 = 20,444.13/x
  3. Step 3: Cross multiply
    42,635.97x = 63,936.14 × 20,444.13
  4. Step 4: Simplify right side
    42,635.97x = 1,307,118,655.64
  5. Step 5: Solve for x
    x = 1,307,118,655.64/42,635.97
  6. Step 6: Final answer
    x = 30,657.65

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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.