Home / 28,253.20-38,991.24-16,317.04

Finding the Fourth Proportional to 28,253.20, 38,991.24 and 16,317.04

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Solution

The fourth proportional to 28,253.20, 38,991.24 and 16,317.04 is: 22,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.20 : 38,991.24 = 16,317.04 : x
  2. Step 2: Convert to fraction form
    28,253.20/38,991.24 = 16,317.04/x
  3. Step 3: Cross multiply
    28,253.20x = 38,991.24 × 16,317.04
  4. Step 4: Simplify right side
    28,253.20x = 636,221,622.73
  5. Step 5: Solve for x
    x = 636,221,622.73/28,253.20
  6. Step 6: Final answer
    x = 22,518.57

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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.