Home / 28,169.28-42,246.72-11,526.21

Finding the Fourth Proportional to 28,169.28, 42,246.72 and 11,526.21

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Solution

The fourth proportional to 28,169.28, 42,246.72 and 11,526.21 is: 17,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.28 : 42,246.72 = 11,526.21 : x
  2. Step 2: Convert to fraction form
    28,169.28/42,246.72 = 11,526.21/x
  3. Step 3: Cross multiply
    28,169.28x = 42,246.72 × 11,526.21
  4. Step 4: Simplify right side
    28,169.28x = 486,944,566.53
  5. Step 5: Solve for x
    x = 486,944,566.53/28,169.28
  6. Step 6: Final answer
    x = 17,286.37

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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.