Home / 20,701.50-31,059.54-9,013.20

Finding the Fourth Proportional to 20,701.50, 31,059.54 and 9,013.20

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Solution

The fourth proportional to 20,701.50, 31,059.54 and 9,013.20 is: 13,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.50 : 31,059.54 = 9,013.20 : x
  2. Step 2: Convert to fraction form
    20,701.50/31,059.54 = 9,013.20/x
  3. Step 3: Cross multiply
    20,701.50x = 31,059.54 × 9,013.20
  4. Step 4: Simplify right side
    20,701.50x = 279,945,845.93
  5. Step 5: Solve for x
    x = 279,945,845.93/20,701.50
  6. Step 6: Final answer
    x = 13,522.97

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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.