Home / 42,269.20-63,407.04-12,684.88

Finding the Fourth Proportional to 42,269.20, 63,407.04 and 12,684.88

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Solution

The fourth proportional to 42,269.20, 63,407.04 and 12,684.88 is: 19,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,269.20 : 63,407.04 = 12,684.88 : x
  2. Step 2: Convert to fraction form
    42,269.20/63,407.04 = 12,684.88/x
  3. Step 3: Cross multiply
    42,269.20x = 63,407.04 × 12,684.88
  4. Step 4: Simplify right side
    42,269.20x = 804,310,693.56
  5. Step 5: Solve for x
    x = 804,310,693.56/42,269.20
  6. Step 6: Final answer
    x = 19,028.29

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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.