Home / 28,229.04-42,350.76-8,509.32

Finding the Fourth Proportional to 28,229.04, 42,350.76 and 8,509.32

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Solution

The fourth proportional to 28,229.04, 42,350.76 and 8,509.32 is: 12,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.04 : 42,350.76 = 8,509.32 : x
  2. Step 2: Convert to fraction form
    28,229.04/42,350.76 = 8,509.32/x
  3. Step 3: Cross multiply
    28,229.04x = 42,350.76 × 8,509.32
  4. Step 4: Simplify right side
    28,229.04x = 360,376,169.08
  5. Step 5: Solve for x
    x = 360,376,169.08/28,229.04
  6. Step 6: Final answer
    x = 12,766.15

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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.