Home / 28,253.24-38,987.52-15,677

Finding the Fourth Proportional to 28,253.24, 38,987.52 and 15,677

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Solution

The fourth proportional to 28,253.24, 38,987.52 and 15,677 is: 21,633.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.24 : 38,987.52 = 15,677 : x
  2. Step 2: Convert to fraction form
    28,253.24/38,987.52 = 15,677/x
  3. Step 3: Cross multiply
    28,253.24x = 38,987.52 × 15,677
  4. Step 4: Simplify right side
    28,253.24x = 611,207,351.04
  5. Step 5: Solve for x
    x = 611,207,351.04/28,253.24
  6. Step 6: Final answer
    x = 21,633.18

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1.5x scale

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.