Home / 27,972.33-38,604.39-15,397.89

Finding the Fourth Proportional to 27,972.33, 38,604.39 and 15,397.89

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Solution

The fourth proportional to 27,972.33, 38,604.39 and 15,397.89 is: 21,250.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,972.33 : 38,604.39 = 15,397.89 : x
  2. Step 2: Convert to fraction form
    27,972.33/38,604.39 = 15,397.89/x
  3. Step 3: Cross multiply
    27,972.33x = 38,604.39 × 15,397.89
  4. Step 4: Simplify right side
    27,972.33x = 594,426,150.74
  5. Step 5: Solve for x
    x = 594,426,150.74/27,972.33
  6. Step 6: Final answer
    x = 21,250.51

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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.