Home / 28,588.20-42,883.17-8,866.86

Finding the Fourth Proportional to 28,588.20, 42,883.17 and 8,866.86

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Solution

The fourth proportional to 28,588.20, 42,883.17 and 8,866.86 is: 13,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.20 : 42,883.17 = 8,866.86 : x
  2. Step 2: Convert to fraction form
    28,588.20/42,883.17 = 8,866.86/x
  3. Step 3: Cross multiply
    28,588.20x = 42,883.17 × 8,866.86
  4. Step 4: Simplify right side
    28,588.20x = 380,239,064.75
  5. Step 5: Solve for x
    x = 380,239,064.75/28,588.20
  6. Step 6: Final answer
    x = 13,300.56

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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.