Home / 27,942.72-38,560.32-15,367.68

Finding the Fourth Proportional to 27,942.72, 38,560.32 and 15,367.68

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Solution

The fourth proportional to 27,942.72, 38,560.32 and 15,367.68 is: 21,207.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,942.72 : 38,560.32 = 15,367.68 : x
  2. Step 2: Convert to fraction form
    27,942.72/38,560.32 = 15,367.68/x
  3. Step 3: Cross multiply
    27,942.72x = 38,560.32 × 15,367.68
  4. Step 4: Simplify right side
    27,942.72x = 592,582,658.46
  5. Step 5: Solve for x
    x = 592,582,658.46/27,942.72
  6. Step 6: Final answer
    x = 21,207.05

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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.