Home / 33,288.76-49,930.40-9,915.20

Finding the Fourth Proportional to 33,288.76, 49,930.40 and 9,915.20

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Solution

The fourth proportional to 33,288.76, 49,930.40 and 9,915.20 is: 14,871.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,288.76 : 49,930.40 = 9,915.20 : x
  2. Step 2: Convert to fraction form
    33,288.76/49,930.40 = 9,915.20/x
  3. Step 3: Cross multiply
    33,288.76x = 49,930.40 × 9,915.20
  4. Step 4: Simplify right side
    33,288.76x = 495,069,902.08
  5. Step 5: Solve for x
    x = 495,069,902.08/33,288.76
  6. Step 6: Final answer
    x = 14,871.98

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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.