Home / 22,121.12-30,497.28-21,433.16

Finding the Fourth Proportional to 22,121.12, 30,497.28 and 21,433.16

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Solution

The fourth proportional to 22,121.12, 30,497.28 and 21,433.16 is: 29,548.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.12 : 30,497.28 = 21,433.16 : x
  2. Step 2: Convert to fraction form
    22,121.12/30,497.28 = 21,433.16/x
  3. Step 3: Cross multiply
    22,121.12x = 30,497.28 × 21,433.16
  4. Step 4: Simplify right side
    22,121.12x = 653,652,929.32
  5. Step 5: Solve for x
    x = 653,652,929.32/22,121.12
  6. Step 6: Final answer
    x = 29,548.82

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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.