Home / 42,584.42-63,876.30-10,991.79

Finding the Fourth Proportional to 42,584.42, 63,876.30 and 10,991.79

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Solution

The fourth proportional to 42,584.42, 63,876.30 and 10,991.79 is: 16,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,584.42 : 63,876.30 = 10,991.79 : x
  2. Step 2: Convert to fraction form
    42,584.42/63,876.30 = 10,991.79/x
  3. Step 3: Cross multiply
    42,584.42x = 63,876.30 × 10,991.79
  4. Step 4: Simplify right side
    42,584.42x = 702,114,875.58
  5. Step 5: Solve for x
    x = 702,114,875.58/42,584.42
  6. Step 6: Final answer
    x = 16,487.60

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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.