Home / 22,915.45-31,623.78-16,212.70

Finding the Fourth Proportional to 22,915.45, 31,623.78 and 16,212.70

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Solution

The fourth proportional to 22,915.45, 31,623.78 and 16,212.70 is: 22,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,915.45 : 31,623.78 = 16,212.70 : x
  2. Step 2: Convert to fraction form
    22,915.45/31,623.78 = 16,212.70/x
  3. Step 3: Cross multiply
    22,915.45x = 31,623.78 × 16,212.70
  4. Step 4: Simplify right side
    22,915.45x = 512,706,858.01
  5. Step 5: Solve for x
    x = 512,706,858.01/22,915.45
  6. Step 6: Final answer
    x = 22,373.85

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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.