Home / 28,219.90-42,277.92-17,687.92

Finding the Fourth Proportional to 28,219.90, 42,277.92 and 17,687.92

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Solution

The fourth proportional to 28,219.90, 42,277.92 and 17,687.92 is: 26,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.90 : 42,277.92 = 17,687.92 : x
  2. Step 2: Convert to fraction form
    28,219.90/42,277.92 = 17,687.92/x
  3. Step 3: Cross multiply
    28,219.90x = 42,277.92 × 17,687.92
  4. Step 4: Simplify right side
    28,219.90x = 747,808,466.73
  5. Step 5: Solve for x
    x = 747,808,466.73/28,219.90
  6. Step 6: Final answer
    x = 26,499.33

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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.