Home / 22,403.07-30,915.45-12,331.44

Finding the Fourth Proportional to 22,403.07, 30,915.45 and 12,331.44

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Solution

The fourth proportional to 22,403.07, 30,915.45 and 12,331.44 is: 17,016.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.07 : 30,915.45 = 12,331.44 : x
  2. Step 2: Convert to fraction form
    22,403.07/30,915.45 = 12,331.44/x
  3. Step 3: Cross multiply
    22,403.07x = 30,915.45 × 12,331.44
  4. Step 4: Simplify right side
    22,403.07x = 381,232,016.75
  5. Step 5: Solve for x
    x = 381,232,016.75/22,403.07
  6. Step 6: Final answer
    x = 17,016.95

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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.