Home / 21,581.49-32,336.60-9,868.89

Finding the Fourth Proportional to 21,581.49, 32,336.60 and 9,868.89

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Solution

The fourth proportional to 21,581.49, 32,336.60 and 9,868.89 is: 14,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581.49 : 32,336.60 = 9,868.89 : x
  2. Step 2: Convert to fraction form
    21,581.49/32,336.60 = 9,868.89/x
  3. Step 3: Cross multiply
    21,581.49x = 32,336.60 × 9,868.89
  4. Step 4: Simplify right side
    21,581.49x = 319,126,475.80
  5. Step 5: Solve for x
    x = 319,126,475.80/21,581.49
  6. Step 6: Final answer
    x = 14,787.04

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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.