Home / 42,171.26-63,267.84-12,589.09

Finding the Fourth Proportional to 42,171.26, 63,267.84 and 12,589.09

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Solution

The fourth proportional to 42,171.26, 63,267.84 and 12,589.09 is: 18,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,171.26 : 63,267.84 = 12,589.09 : x
  2. Step 2: Convert to fraction form
    42,171.26/63,267.84 = 12,589.09/x
  3. Step 3: Cross multiply
    42,171.26x = 63,267.84 × 12,589.09
  4. Step 4: Simplify right side
    42,171.26x = 796,484,373.70
  5. Step 5: Solve for x
    x = 796,484,373.70/42,171.26
  6. Step 6: Final answer
    x = 18,886.90

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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.