Home / 42,263.28-63,376.20-12,671.28

Finding the Fourth Proportional to 42,263.28, 63,376.20 and 12,671.28

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Solution

The fourth proportional to 42,263.28, 63,376.20 and 12,671.28 is: 19,001.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,263.28 : 63,376.20 = 12,671.28 : x
  2. Step 2: Convert to fraction form
    42,263.28/63,376.20 = 12,671.28/x
  3. Step 3: Cross multiply
    42,263.28x = 63,376.20 × 12,671.28
  4. Step 4: Simplify right side
    42,263.28x = 803,057,575.54
  5. Step 5: Solve for x
    x = 803,057,575.54/42,263.28
  6. Step 6: Final answer
    x = 19,001.31

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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.