Home / 28,252.42-38,988.57-15,677.38

Finding the Fourth Proportional to 28,252.42, 38,988.57 and 15,677.38

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Solution

The fourth proportional to 28,252.42, 38,988.57 and 15,677.38 is: 21,634.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,252.42 : 38,988.57 = 15,677.38 : x
  2. Step 2: Convert to fraction form
    28,252.42/38,988.57 = 15,677.38/x
  3. Step 3: Cross multiply
    28,252.42x = 38,988.57 × 15,677.38
  4. Step 4: Simplify right side
    28,252.42x = 611,238,627.55
  5. Step 5: Solve for x
    x = 611,238,627.55/28,252.42
  6. Step 6: Final answer
    x = 21,634.91

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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.