Home / 22,386.38-30,891.17-12,315.24

Finding the Fourth Proportional to 22,386.38, 30,891.17 and 12,315.24

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Solution

The fourth proportional to 22,386.38, 30,891.17 and 12,315.24 is: 16,993.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,386.38 : 30,891.17 = 12,315.24 : x
  2. Step 2: Convert to fraction form
    22,386.38/30,891.17 = 12,315.24/x
  3. Step 3: Cross multiply
    22,386.38x = 30,891.17 × 12,315.24
  4. Step 4: Simplify right side
    22,386.38x = 380,432,203.22
  5. Step 5: Solve for x
    x = 380,432,203.22/22,386.38
  6. Step 6: Final answer
    x = 16,993.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.