Home / 22,915.16-34,378.11-7,119.36

Finding the Fourth Proportional to 22,915.16, 34,378.11 and 7,119.36

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Solution

The fourth proportional to 22,915.16, 34,378.11 and 7,119.36 is: 10,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,915.16 : 34,378.11 = 7,119.36 : x
  2. Step 2: Convert to fraction form
    22,915.16/34,378.11 = 7,119.36/x
  3. Step 3: Cross multiply
    22,915.16x = 34,378.11 × 7,119.36
  4. Step 4: Simplify right side
    22,915.16x = 244,750,141.21
  5. Step 5: Solve for x
    x = 244,750,141.21/22,915.16
  6. Step 6: Final answer
    x = 10,680.71

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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.