Home / 19,689.40-29,523.90-5,836.60

Finding the Fourth Proportional to 19,689.40, 29,523.90 and 5,836.60

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Solution

The fourth proportional to 19,689.40, 29,523.90 and 5,836.60 is: 8,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.40 : 29,523.90 = 5,836.60 : x
  2. Step 2: Convert to fraction form
    19,689.40/29,523.90 = 5,836.60/x
  3. Step 3: Cross multiply
    19,689.40x = 29,523.90 × 5,836.60
  4. Step 4: Simplify right side
    19,689.40x = 172,319,194.74
  5. Step 5: Solve for x
    x = 172,319,194.74/19,689.40
  6. Step 6: Final answer
    x = 8,751.88

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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.