Home / 19,915.50-29,866.29-5,871.80

Finding the Fourth Proportional to 19,915.50, 29,866.29 and 5,871.80

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Solution

The fourth proportional to 19,915.50, 29,866.29 and 5,871.80 is: 8,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.50 : 29,866.29 = 5,871.80 : x
  2. Step 2: Convert to fraction form
    19,915.50/29,866.29 = 5,871.80/x
  3. Step 3: Cross multiply
    19,915.50x = 29,866.29 × 5,871.80
  4. Step 4: Simplify right side
    19,915.50x = 175,368,967.30
  5. Step 5: Solve for x
    x = 175,368,967.30/19,915.50
  6. Step 6: Final answer
    x = 8,805.65

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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.