Home / 23,067.12-34,428.12-21,220.32

Finding the Fourth Proportional to 23,067.12, 34,428.12 and 21,220.32

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Solution

The fourth proportional to 23,067.12, 34,428.12 and 21,220.32 is: 31,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,067.12 : 34,428.12 = 21,220.32 : x
  2. Step 2: Convert to fraction form
    23,067.12/34,428.12 = 21,220.32/x
  3. Step 3: Cross multiply
    23,067.12x = 34,428.12 × 21,220.32
  4. Step 4: Simplify right side
    23,067.12x = 730,575,723.40
  5. Step 5: Solve for x
    x = 730,575,723.40/23,067.12
  6. Step 6: Final answer
    x = 31,671.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.