Home / 28,251.43-38,986.46-15,675.91

Finding the Fourth Proportional to 28,251.43, 38,986.46 and 15,675.91

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Solution

The fourth proportional to 28,251.43, 38,986.46 and 15,675.91 is: 21,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.43 : 38,986.46 = 15,675.91 : x
  2. Step 2: Convert to fraction form
    28,251.43/38,986.46 = 15,675.91/x
  3. Step 3: Cross multiply
    28,251.43x = 38,986.46 × 15,675.91
  4. Step 4: Simplify right side
    28,251.43x = 611,148,159.80
  5. Step 5: Solve for x
    x = 611,148,159.80/28,251.43
  6. Step 6: Final answer
    x = 21,632.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.