Home / 22,275.92-30,781.32-21,196.24

Finding the Fourth Proportional to 22,275.92, 30,781.32 and 21,196.24

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Solution

The fourth proportional to 22,275.92, 30,781.32 and 21,196.24 is: 29,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,275.92 : 30,781.32 = 21,196.24 : x
  2. Step 2: Convert to fraction form
    22,275.92/30,781.32 = 21,196.24/x
  3. Step 3: Cross multiply
    22,275.92x = 30,781.32 × 21,196.24
  4. Step 4: Simplify right side
    22,275.92x = 652,448,246.24
  5. Step 5: Solve for x
    x = 652,448,246.24/22,275.92
  6. Step 6: Final answer
    x = 29,289.40

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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.