Home / 20,455.62-30,680.02-5,666.04

Finding the Fourth Proportional to 20,455.62, 30,680.02 and 5,666.04

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Solution

The fourth proportional to 20,455.62, 30,680.02 and 5,666.04 is: 8,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455.62 : 30,680.02 = 5,666.04 : x
  2. Step 2: Convert to fraction form
    20,455.62/30,680.02 = 5,666.04/x
  3. Step 3: Cross multiply
    20,455.62x = 30,680.02 × 5,666.04
  4. Step 4: Simplify right side
    20,455.62x = 173,834,220.52
  5. Step 5: Solve for x
    x = 173,834,220.52/20,455.62
  6. Step 6: Final answer
    x = 8,498.12

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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.