Home / 20,598.54-28,425.66-11,645.70

Finding the Fourth Proportional to 20,598.54, 28,425.66 and 11,645.70

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Solution

The fourth proportional to 20,598.54, 28,425.66 and 11,645.70 is: 16,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.54 : 28,425.66 = 11,645.70 : x
  2. Step 2: Convert to fraction form
    20,598.54/28,425.66 = 11,645.70/x
  3. Step 3: Cross multiply
    20,598.54x = 28,425.66 × 11,645.70
  4. Step 4: Simplify right side
    20,598.54x = 331,036,708.66
  5. Step 5: Solve for x
    x = 331,036,708.66/20,598.54
  6. Step 6: Final answer
    x = 16,070.88

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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.