Home / 19,915.28-29,872.87-5,885.16

Finding the Fourth Proportional to 19,915.28, 29,872.87 and 5,885.16

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Solution

The fourth proportional to 19,915.28, 29,872.87 and 5,885.16 is: 8,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.28 : 29,872.87 = 5,885.16 : x
  2. Step 2: Convert to fraction form
    19,915.28/29,872.87 = 5,885.16/x
  3. Step 3: Cross multiply
    19,915.28x = 29,872.87 × 5,885.16
  4. Step 4: Simplify right side
    19,915.28x = 175,806,619.61
  5. Step 5: Solve for x
    x = 175,806,619.61/19,915.28
  6. Step 6: Final answer
    x = 8,827.73

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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.