Home / 22,915.87-31,623.61-12,844.30

Finding the Fourth Proportional to 22,915.87, 31,623.61 and 12,844.30

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Solution

The fourth proportional to 22,915.87, 31,623.61 and 12,844.30 is: 17,724.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,915.87 : 31,623.61 = 12,844.30 : x
  2. Step 2: Convert to fraction form
    22,915.87/31,623.61 = 12,844.30/x
  3. Step 3: Cross multiply
    22,915.87x = 31,623.61 × 12,844.30
  4. Step 4: Simplify right side
    22,915.87x = 406,182,975.80
  5. Step 5: Solve for x
    x = 406,182,975.80/22,915.87
  6. Step 6: Final answer
    x = 17,724.97

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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.