Home / 28,634.38-39,535.14-21,908.26

Finding the Fourth Proportional to 28,634.38, 39,535.14 and 21,908.26

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Solution

The fourth proportional to 28,634.38, 39,535.14 and 21,908.26 is: 30,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.38 : 39,535.14 = 21,908.26 : x
  2. Step 2: Convert to fraction form
    28,634.38/39,535.14 = 21,908.26/x
  3. Step 3: Cross multiply
    28,634.38x = 39,535.14 × 21,908.26
  4. Step 4: Simplify right side
    28,634.38x = 866,146,126.26
  5. Step 5: Solve for x
    x = 866,146,126.26/28,634.38
  6. Step 6: Final answer
    x = 30,248.47

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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.