Home / 29,981.36-44,964.20-8,915.72

Finding the Fourth Proportional to 29,981.36, 44,964.20 and 8,915.72

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Solution

The fourth proportional to 29,981.36, 44,964.20 and 8,915.72 is: 13,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,981.36 : 44,964.20 = 8,915.72 : x
  2. Step 2: Convert to fraction form
    29,981.36/44,964.20 = 8,915.72/x
  3. Step 3: Cross multiply
    29,981.36x = 44,964.20 × 8,915.72
  4. Step 4: Simplify right side
    29,981.36x = 400,888,217.22
  5. Step 5: Solve for x
    x = 400,888,217.22/29,981.36
  6. Step 6: Final answer
    x = 13,371.25

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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.