Home / 28,170.29-42,267.29-12,367.17

Finding the Fourth Proportional to 28,170.29, 42,267.29 and 12,367.17

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Solution

The fourth proportional to 28,170.29, 42,267.29 and 12,367.17 is: 18,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.29 : 42,267.29 = 12,367.17 : x
  2. Step 2: Convert to fraction form
    28,170.29/42,267.29 = 12,367.17/x
  3. Step 3: Cross multiply
    28,170.29x = 42,267.29 × 12,367.17
  4. Step 4: Simplify right side
    28,170.29x = 522,726,699.03
  5. Step 5: Solve for x
    x = 522,726,699.03/28,170.29
  6. Step 6: Final answer
    x = 18,555.96

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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.