Home / 28,147.05-42,235.17-12,363.19

Finding the Fourth Proportional to 28,147.05, 42,235.17 and 12,363.19

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Solution

The fourth proportional to 28,147.05, 42,235.17 and 12,363.19 is: 18,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.05 : 42,235.17 = 12,363.19 : x
  2. Step 2: Convert to fraction form
    28,147.05/42,235.17 = 12,363.19/x
  3. Step 3: Cross multiply
    28,147.05x = 42,235.17 × 12,363.19
  4. Step 4: Simplify right side
    28,147.05x = 522,161,431.39
  5. Step 5: Solve for x
    x = 522,161,431.39/28,147.05
  6. Step 6: Final answer
    x = 18,551.20

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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.