Home / 27,882.96-38,478.52-15,307.76

Finding the Fourth Proportional to 27,882.96, 38,478.52 and 15,307.76

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Solution

The fourth proportional to 27,882.96, 38,478.52 and 15,307.76 is: 21,124.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.96 : 38,478.52 = 15,307.76 : x
  2. Step 2: Convert to fraction form
    27,882.96/38,478.52 = 15,307.76/x
  3. Step 3: Cross multiply
    27,882.96x = 38,478.52 × 15,307.76
  4. Step 4: Simplify right side
    27,882.96x = 589,019,949.32
  5. Step 5: Solve for x
    x = 589,019,949.32/27,882.96
  6. Step 6: Final answer
    x = 21,124.73

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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.