Home / 42,115.92-63,173.88-12,534.18

Finding the Fourth Proportional to 42,115.92, 63,173.88 and 12,534.18

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Solution

The fourth proportional to 42,115.92, 63,173.88 and 12,534.18 is: 18,801.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,115.92 : 63,173.88 = 12,534.18 : x
  2. Step 2: Convert to fraction form
    42,115.92/63,173.88 = 12,534.18/x
  3. Step 3: Cross multiply
    42,115.92x = 63,173.88 × 12,534.18
  4. Step 4: Simplify right side
    42,115.92x = 791,832,783.22
  5. Step 5: Solve for x
    x = 791,832,783.22/42,115.92
  6. Step 6: Final answer
    x = 18,801.27

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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.