Home / 42,407.70-63,611.55-11,242.95

Finding the Fourth Proportional to 42,407.70, 63,611.55 and 11,242.95

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Solution

The fourth proportional to 42,407.70, 63,611.55 and 11,242.95 is: 16,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,407.70 : 63,611.55 = 11,242.95 : x
  2. Step 2: Convert to fraction form
    42,407.70/63,611.55 = 11,242.95/x
  3. Step 3: Cross multiply
    42,407.70x = 63,611.55 × 11,242.95
  4. Step 4: Simplify right side
    42,407.70x = 715,181,476.07
  5. Step 5: Solve for x
    x = 715,181,476.07/42,407.70
  6. Step 6: Final answer
    x = 16,864.43

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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.