Home / 42,354.60-63,511.36-12,766.92

Finding the Fourth Proportional to 42,354.60, 63,511.36 and 12,766.92

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Solution

The fourth proportional to 42,354.60, 63,511.36 and 12,766.92 is: 19,144.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,354.60 : 63,511.36 = 12,766.92 : x
  2. Step 2: Convert to fraction form
    42,354.60/63,511.36 = 12,766.92/x
  3. Step 3: Cross multiply
    42,354.60x = 63,511.36 × 12,766.92
  4. Step 4: Simplify right side
    42,354.60x = 810,844,452.21
  5. Step 5: Solve for x
    x = 810,844,452.21/42,354.60
  6. Step 6: Final answer
    x = 19,144.19

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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.