Home / 20,773.10-31,149.57-9,677.18

Finding the Fourth Proportional to 20,773.10, 31,149.57 and 9,677.18

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Solution

The fourth proportional to 20,773.10, 31,149.57 and 9,677.18 is: 14,511.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.10 : 31,149.57 = 9,677.18 : x
  2. Step 2: Convert to fraction form
    20,773.10/31,149.57 = 9,677.18/x
  3. Step 3: Cross multiply
    20,773.10x = 31,149.57 × 9,677.18
  4. Step 4: Simplify right side
    20,773.10x = 301,439,995.81
  5. Step 5: Solve for x
    x = 301,439,995.81/20,773.10
  6. Step 6: Final answer
    x = 14,511.07

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1.5x scale

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.