Home / 42,655.10-63,987.45-13,072.70

Finding the Fourth Proportional to 42,655.10, 63,987.45 and 13,072.70

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Solution

The fourth proportional to 42,655.10, 63,987.45 and 13,072.70 is: 19,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,655.10 : 63,987.45 = 13,072.70 : x
  2. Step 2: Convert to fraction form
    42,655.10/63,987.45 = 13,072.70/x
  3. Step 3: Cross multiply
    42,655.10x = 63,987.45 × 13,072.70
  4. Step 4: Simplify right side
    42,655.10x = 836,488,737.62
  5. Step 5: Solve for x
    x = 836,488,737.62/42,655.10
  6. Step 6: Final answer
    x = 19,610.52

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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.