Home / 42,171.12-63,267.66-12,588.97

Finding the Fourth Proportional to 42,171.12, 63,267.66 and 12,588.97

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Solution

The fourth proportional to 42,171.12, 63,267.66 and 12,588.97 is: 18,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,171.12 : 63,267.66 = 12,588.97 : x
  2. Step 2: Convert to fraction form
    42,171.12/63,267.66 = 12,588.97/x
  3. Step 3: Cross multiply
    42,171.12x = 63,267.66 × 12,588.97
  4. Step 4: Simplify right side
    42,171.12x = 796,474,673.71
  5. Step 5: Solve for x
    x = 796,474,673.71/42,171.12
  6. Step 6: Final answer
    x = 18,886.73

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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.