Home / 42,283.71-63,429.30-11,118.96

Finding the Fourth Proportional to 42,283.71, 63,429.30 and 11,118.96

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Solution

The fourth proportional to 42,283.71, 63,429.30 and 11,118.96 is: 16,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,283.71 : 63,429.30 = 11,118.96 : x
  2. Step 2: Convert to fraction form
    42,283.71/63,429.30 = 11,118.96/x
  3. Step 3: Cross multiply
    42,283.71x = 63,429.30 × 11,118.96
  4. Step 4: Simplify right side
    42,283.71x = 705,267,849.53
  5. Step 5: Solve for x
    x = 705,267,849.53/42,283.71
  6. Step 6: Final answer
    x = 16,679.42

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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.