Home / 20,598.32-28,425.48-11,166.72

Finding the Fourth Proportional to 20,598.32, 28,425.48 and 11,166.72

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Solution

The fourth proportional to 20,598.32, 28,425.48 and 11,166.72 is: 15,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.32 : 28,425.48 = 11,166.72 : x
  2. Step 2: Convert to fraction form
    20,598.32/28,425.48 = 11,166.72/x
  3. Step 3: Cross multiply
    20,598.32x = 28,425.48 × 11,166.72
  4. Step 4: Simplify right side
    20,598.32x = 317,419,376.03
  5. Step 5: Solve for x
    x = 317,419,376.03/20,598.32
  6. Step 6: Final answer
    x = 15,409.96

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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.