Home / 28,382.08-42,560.32-8,663.04

Finding the Fourth Proportional to 28,382.08, 42,560.32 and 8,663.04

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Solution

The fourth proportional to 28,382.08, 42,560.32 and 8,663.04 is: 12,990.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.08 : 42,560.32 = 8,663.04 : x
  2. Step 2: Convert to fraction form
    28,382.08/42,560.32 = 8,663.04/x
  3. Step 3: Cross multiply
    28,382.08x = 42,560.32 × 8,663.04
  4. Step 4: Simplify right side
    28,382.08x = 368,701,754.57
  5. Step 5: Solve for x
    x = 368,701,754.57/28,382.08
  6. Step 6: Final answer
    x = 12,990.65

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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.