Home / 27,849.62-38,434.51-15,912.70

Finding the Fourth Proportional to 27,849.62, 38,434.51 and 15,912.70

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Solution

The fourth proportional to 27,849.62, 38,434.51 and 15,912.70 is: 21,960.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,849.62 : 38,434.51 = 15,912.70 : x
  2. Step 2: Convert to fraction form
    27,849.62/38,434.51 = 15,912.70/x
  3. Step 3: Cross multiply
    27,849.62x = 38,434.51 × 15,912.70
  4. Step 4: Simplify right side
    27,849.62x = 611,596,827.28
  5. Step 5: Solve for x
    x = 611,596,827.28/27,849.62
  6. Step 6: Final answer
    x = 21,960.69

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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.