Home / 20,549.12-28,357.68-11,599.53

Finding the Fourth Proportional to 20,549.12, 28,357.68 and 11,599.53

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Solution

The fourth proportional to 20,549.12, 28,357.68 and 11,599.53 is: 16,007.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.12 : 28,357.68 = 11,599.53 : x
  2. Step 2: Convert to fraction form
    20,549.12/28,357.68 = 11,599.53/x
  3. Step 3: Cross multiply
    20,549.12x = 28,357.68 × 11,599.53
  4. Step 4: Simplify right side
    20,549.12x = 328,935,701.89
  5. Step 5: Solve for x
    x = 328,935,701.89/20,549.12
  6. Step 6: Final answer
    x = 16,007.29

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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.