Home / 20,677.10-31,006.05-8,984.30

Finding the Fourth Proportional to 20,677.10, 31,006.05 and 8,984.30

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Solution

The fourth proportional to 20,677.10, 31,006.05 and 8,984.30 is: 13,472.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.10 : 31,006.05 = 8,984.30 : x
  2. Step 2: Convert to fraction form
    20,677.10/31,006.05 = 8,984.30/x
  3. Step 3: Cross multiply
    20,677.10x = 31,006.05 × 8,984.30
  4. Step 4: Simplify right side
    20,677.10x = 278,567,655.02
  5. Step 5: Solve for x
    x = 278,567,655.02/20,677.10
  6. Step 6: Final answer
    x = 13,472.28

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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.