Home / 22,403.72-30,915.99-12,331.89

Finding the Fourth Proportional to 22,403.72, 30,915.99 and 12,331.89

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Solution

The fourth proportional to 22,403.72, 30,915.99 and 12,331.89 is: 17,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.72 : 30,915.99 = 12,331.89 : x
  2. Step 2: Convert to fraction form
    22,403.72/30,915.99 = 12,331.89/x
  3. Step 3: Cross multiply
    22,403.72x = 30,915.99 × 12,331.89
  4. Step 4: Simplify right side
    22,403.72x = 381,252,587.92
  5. Step 5: Solve for x
    x = 381,252,587.92/22,403.72
  6. Step 6: Final answer
    x = 17,017.38

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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.