Home / 28,288.85-42,451.12-15,817.04

Finding the Fourth Proportional to 28,288.85, 42,451.12 and 15,817.04

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Solution

The fourth proportional to 28,288.85, 42,451.12 and 15,817.04 is: 23,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.85 : 42,451.12 = 15,817.04 : x
  2. Step 2: Convert to fraction form
    28,288.85/42,451.12 = 15,817.04/x
  3. Step 3: Cross multiply
    28,288.85x = 42,451.12 × 15,817.04
  4. Step 4: Simplify right side
    28,288.85x = 671,451,029.79
  5. Step 5: Solve for x
    x = 671,451,029.79/28,288.85
  6. Step 6: Final answer
    x = 23,735.54

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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.