Home / 20,598.15-28,425.51-11,166.72

Finding the Fourth Proportional to 20,598.15, 28,425.51 and 11,166.72

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Solution

The fourth proportional to 20,598.15, 28,425.51 and 11,166.72 is: 15,410.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.15 : 28,425.51 = 11,166.72 : x
  2. Step 2: Convert to fraction form
    20,598.15/28,425.51 = 11,166.72/x
  3. Step 3: Cross multiply
    20,598.15x = 28,425.51 × 11,166.72
  4. Step 4: Simplify right side
    20,598.15x = 317,419,711.03
  5. Step 5: Solve for x
    x = 317,419,711.03/20,598.15
  6. Step 6: Final answer
    x = 15,410.11

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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.