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Finding the Fourth Proportional to 22,927.40, 34,391.10 and 20,959.10

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Solution

The fourth proportional to 22,927.40, 34,391.10 and 20,959.10 is: 31,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,927.40 : 34,391.10 = 20,959.10 : x
  2. Step 2: Convert to fraction form
    22,927.40/34,391.10 = 20,959.10/x
  3. Step 3: Cross multiply
    22,927.40x = 34,391.10 × 20,959.10
  4. Step 4: Simplify right side
    22,927.40x = 720,806,504.01
  5. Step 5: Solve for x
    x = 720,806,504.01/22,927.40
  6. Step 6: Final answer
    x = 31,438.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.