Home / 20,683.28-31,037.67-9,587.90

Finding the Fourth Proportional to 20,683.28, 31,037.67 and 9,587.90

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Solution

The fourth proportional to 20,683.28, 31,037.67 and 9,587.90 is: 14,387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.28 : 31,037.67 = 9,587.90 : x
  2. Step 2: Convert to fraction form
    20,683.28/31,037.67 = 9,587.90/x
  3. Step 3: Cross multiply
    20,683.28x = 31,037.67 × 9,587.90
  4. Step 4: Simplify right side
    20,683.28x = 297,585,921.00
  5. Step 5: Solve for x
    x = 297,585,921.00/20,683.28
  6. Step 6: Final answer
    x = 14,387.76

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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.