Home / 28,237.32-42,359.67-8,517.87

Finding the Fourth Proportional to 28,237.32, 42,359.67 and 8,517.87

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Solution

The fourth proportional to 28,237.32, 42,359.67 and 8,517.87 is: 12,777.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.32 : 42,359.67 = 8,517.87 : x
  2. Step 2: Convert to fraction form
    28,237.32/42,359.67 = 8,517.87/x
  3. Step 3: Cross multiply
    28,237.32x = 42,359.67 × 8,517.87
  4. Step 4: Simplify right side
    28,237.32x = 360,814,162.30
  5. Step 5: Solve for x
    x = 360,814,162.30/28,237.32
  6. Step 6: Final answer
    x = 12,777.92

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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.