Home / 42,238.67-63,367.11-12,659.09

Finding the Fourth Proportional to 42,238.67, 63,367.11 and 12,659.09

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Solution

The fourth proportional to 42,238.67, 63,367.11 and 12,659.09 is: 18,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,238.67 : 63,367.11 = 12,659.09 : x
  2. Step 2: Convert to fraction form
    42,238.67/63,367.11 = 12,659.09/x
  3. Step 3: Cross multiply
    42,238.67x = 63,367.11 × 12,659.09
  4. Step 4: Simplify right side
    42,238.67x = 802,169,631.69
  5. Step 5: Solve for x
    x = 802,169,631.69/42,238.67
  6. Step 6: Final answer
    x = 18,991.36

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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.