Home / 42,211.80-63,308.28-12,625.80

Finding the Fourth Proportional to 42,211.80, 63,308.28 and 12,625.80

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Solution

The fourth proportional to 42,211.80, 63,308.28 and 12,625.80 is: 18,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,211.80 : 63,308.28 = 12,625.80 : x
  2. Step 2: Convert to fraction form
    42,211.80/63,308.28 = 12,625.80/x
  3. Step 3: Cross multiply
    42,211.80x = 63,308.28 × 12,625.80
  4. Step 4: Simplify right side
    42,211.80x = 799,317,681.62
  5. Step 5: Solve for x
    x = 799,317,681.62/42,211.80
  6. Step 6: Final answer
    x = 18,935.88

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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.