Home / 28,351.17-42,508.53-13,559.76

Finding the Fourth Proportional to 28,351.17, 42,508.53 and 13,559.76

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Solution

The fourth proportional to 28,351.17, 42,508.53 and 13,559.76 is: 20,330.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,351.17 : 42,508.53 = 13,559.76 : x
  2. Step 2: Convert to fraction form
    28,351.17/42,508.53 = 13,559.76/x
  3. Step 3: Cross multiply
    28,351.17x = 42,508.53 × 13,559.76
  4. Step 4: Simplify right side
    28,351.17x = 576,405,464.75
  5. Step 5: Solve for x
    x = 576,405,464.75/28,351.17
  6. Step 6: Final answer
    x = 20,330.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.