Home / 42,438.72-63,656.45-14,360.88

Finding the Fourth Proportional to 42,438.72, 63,656.45 and 14,360.88

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Solution

The fourth proportional to 42,438.72, 63,656.45 and 14,360.88 is: 21,540.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,438.72 : 63,656.45 = 14,360.88 : x
  2. Step 2: Convert to fraction form
    42,438.72/63,656.45 = 14,360.88/x
  3. Step 3: Cross multiply
    42,438.72x = 63,656.45 × 14,360.88
  4. Step 4: Simplify right side
    42,438.72x = 914,162,639.68
  5. Step 5: Solve for x
    x = 914,162,639.68/42,438.72
  6. Step 6: Final answer
    x = 21,540.77

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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.