Home / 28,287.16-42,436.20-10,755.62

Finding the Fourth Proportional to 28,287.16, 42,436.20 and 10,755.62

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Solution

The fourth proportional to 28,287.16, 42,436.20 and 10,755.62 is: 16,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.16 : 42,436.20 = 10,755.62 : x
  2. Step 2: Convert to fraction form
    28,287.16/42,436.20 = 10,755.62/x
  3. Step 3: Cross multiply
    28,287.16x = 42,436.20 × 10,755.62
  4. Step 4: Simplify right side
    28,287.16x = 456,427,641.44
  5. Step 5: Solve for x
    x = 456,427,641.44/28,287.16
  6. Step 6: Final answer
    x = 16,135.51

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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.