Home / 20,868.59-31,291.17-9,014.96

Finding the Fourth Proportional to 20,868.59, 31,291.17 and 9,014.96

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Solution

The fourth proportional to 20,868.59, 31,291.17 and 9,014.96 is: 13,517.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.59 : 31,291.17 = 9,014.96 : x
  2. Step 2: Convert to fraction form
    20,868.59/31,291.17 = 9,014.96/x
  3. Step 3: Cross multiply
    20,868.59x = 31,291.17 × 9,014.96
  4. Step 4: Simplify right side
    20,868.59x = 282,088,621.70
  5. Step 5: Solve for x
    x = 282,088,621.70/20,868.59
  6. Step 6: Final answer
    x = 13,517.38

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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.