Home / 20,000.16-27,610.76-12,930.60

Finding the Fourth Proportional to 20,000.16, 27,610.76 and 12,930.60

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Solution

The fourth proportional to 20,000.16, 27,610.76 and 12,930.60 is: 17,851.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.16 : 27,610.76 = 12,930.60 : x
  2. Step 2: Convert to fraction form
    20,000.16/27,610.76 = 12,930.60/x
  3. Step 3: Cross multiply
    20,000.16x = 27,610.76 × 12,930.60
  4. Step 4: Simplify right side
    20,000.16x = 357,023,693.26
  5. Step 5: Solve for x
    x = 357,023,693.26/20,000.16
  6. Step 6: Final answer
    x = 17,851.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.