Home / 22,122.12-30,498.66-21,434.16

Finding the Fourth Proportional to 22,122.12, 30,498.66 and 21,434.16

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Solution

The fourth proportional to 22,122.12, 30,498.66 and 21,434.16 is: 29,550.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.12 : 30,498.66 = 21,434.16 : x
  2. Step 2: Convert to fraction form
    22,122.12/30,498.66 = 21,434.16/x
  3. Step 3: Cross multiply
    22,122.12x = 30,498.66 × 21,434.16
  4. Step 4: Simplify right side
    22,122.12x = 653,713,158.23
  5. Step 5: Solve for x
    x = 653,713,158.23/22,122.12
  6. Step 6: Final answer
    x = 29,550.20

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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.