Home / 27,780.63-38,337.26-15,205.38

Finding the Fourth Proportional to 27,780.63, 38,337.26 and 15,205.38

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Solution

The fourth proportional to 27,780.63, 38,337.26 and 15,205.38 is: 20,983.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,780.63 : 38,337.26 = 15,205.38 : x
  2. Step 2: Convert to fraction form
    27,780.63/38,337.26 = 15,205.38/x
  3. Step 3: Cross multiply
    27,780.63x = 38,337.26 × 15,205.38
  4. Step 4: Simplify right side
    27,780.63x = 582,932,606.46
  5. Step 5: Solve for x
    x = 582,932,606.46/27,780.63
  6. Step 6: Final answer
    x = 20,983.42

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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.