Home / 21,564.28-32,319.15-9,705.42

Finding the Fourth Proportional to 21,564.28, 32,319.15 and 9,705.42

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Solution

The fourth proportional to 21,564.28, 32,319.15 and 9,705.42 is: 14,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.28 : 32,319.15 = 9,705.42 : x
  2. Step 2: Convert to fraction form
    21,564.28/32,319.15 = 9,705.42/x
  3. Step 3: Cross multiply
    21,564.28x = 32,319.15 × 9,705.42
  4. Step 4: Simplify right side
    21,564.28x = 313,670,942.99
  5. Step 5: Solve for x
    x = 313,670,942.99/21,564.28
  6. Step 6: Final answer
    x = 14,545.86

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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.