Home / 28,108.32-42,159.34-8,382.23

Finding the Fourth Proportional to 28,108.32, 42,159.34 and 8,382.23

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Solution

The fourth proportional to 28,108.32, 42,159.34 and 8,382.23 is: 12,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.32 : 42,159.34 = 8,382.23 : x
  2. Step 2: Convert to fraction form
    28,108.32/42,159.34 = 8,382.23/x
  3. Step 3: Cross multiply
    28,108.32x = 42,159.34 × 8,382.23
  4. Step 4: Simplify right side
    28,108.32x = 353,389,432.30
  5. Step 5: Solve for x
    x = 353,389,432.30/28,108.32
  6. Step 6: Final answer
    x = 12,572.42

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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.