Home / 28,235.38-42,366.00-12,229.81

Finding the Fourth Proportional to 28,235.38, 42,366.00 and 12,229.81

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Solution

The fourth proportional to 28,235.38, 42,366.00 and 12,229.81 is: 18,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.38 : 42,366.00 = 12,229.81 : x
  2. Step 2: Convert to fraction form
    28,235.38/42,366.00 = 12,229.81/x
  3. Step 3: Cross multiply
    28,235.38x = 42,366.00 × 12,229.81
  4. Step 4: Simplify right side
    28,235.38x = 518,128,229.28
  5. Step 5: Solve for x
    x = 518,128,229.28/28,235.38
  6. Step 6: Final answer
    x = 18,350.32

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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.