Home / 20,598.20-28,425.54-11,166.68

Finding the Fourth Proportional to 20,598.20, 28,425.54 and 11,166.68

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Solution

The fourth proportional to 20,598.20, 28,425.54 and 11,166.68 is: 15,410.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.20 : 28,425.54 = 11,166.68 : x
  2. Step 2: Convert to fraction form
    20,598.20/28,425.54 = 11,166.68/x
  3. Step 3: Cross multiply
    20,598.20x = 28,425.54 × 11,166.68
  4. Step 4: Simplify right side
    20,598.20x = 317,418,909.01
  5. Step 5: Solve for x
    x = 317,418,909.01/20,598.20
  6. Step 6: Final answer
    x = 15,410.03

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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.