Home / 19,915.47-29,866.25-5,871.77

Finding the Fourth Proportional to 19,915.47, 29,866.25 and 5,871.77

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Solution

The fourth proportional to 19,915.47, 29,866.25 and 5,871.77 is: 8,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.47 : 29,866.25 = 5,871.77 : x
  2. Step 2: Convert to fraction form
    19,915.47/29,866.25 = 5,871.77/x
  3. Step 3: Cross multiply
    19,915.47x = 29,866.25 × 5,871.77
  4. Step 4: Simplify right side
    19,915.47x = 175,367,810.75
  5. Step 5: Solve for x
    x = 175,367,810.75/19,915.47
  6. Step 6: Final answer
    x = 8,805.61

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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.