Home / 19,915.17-29,868.30-5,872.20

Finding the Fourth Proportional to 19,915.17, 29,868.30 and 5,872.20

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Solution

The fourth proportional to 19,915.17, 29,868.30 and 5,872.20 is: 8,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.17 : 29,868.30 = 5,872.20 : x
  2. Step 2: Convert to fraction form
    19,915.17/29,868.30 = 5,872.20/x
  3. Step 3: Cross multiply
    19,915.17x = 29,868.30 × 5,872.20
  4. Step 4: Simplify right side
    19,915.17x = 175,392,631.26
  5. Step 5: Solve for x
    x = 175,392,631.26/19,915.17
  6. Step 6: Final answer
    x = 8,806.99

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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.