Home / 20,711.60-31,045.52-14,865.04

Finding the Fourth Proportional to 20,711.60, 31,045.52 and 14,865.04

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Solution

The fourth proportional to 20,711.60, 31,045.52 and 14,865.04 is: 22,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.60 : 31,045.52 = 14,865.04 : x
  2. Step 2: Convert to fraction form
    20,711.60/31,045.52 = 14,865.04/x
  3. Step 3: Cross multiply
    20,711.60x = 31,045.52 × 14,865.04
  4. Step 4: Simplify right side
    20,711.60x = 461,492,896.62
  5. Step 5: Solve for x
    x = 461,492,896.62/20,711.60
  6. Step 6: Final answer
    x = 22,281.86

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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.