Home / 22,103.92-30,506.16-12,672.28

Finding the Fourth Proportional to 22,103.92, 30,506.16 and 12,672.28

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Solution

The fourth proportional to 22,103.92, 30,506.16 and 12,672.28 is: 17,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,103.92 : 30,506.16 = 12,672.28 : x
  2. Step 2: Convert to fraction form
    22,103.92/30,506.16 = 12,672.28/x
  3. Step 3: Cross multiply
    22,103.92x = 30,506.16 × 12,672.28
  4. Step 4: Simplify right side
    22,103.92x = 386,582,601.24
  5. Step 5: Solve for x
    x = 386,582,601.24/22,103.92
  6. Step 6: Final answer
    x = 17,489.32

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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.