Home / 27,894.01-38,493.69-15,318.76

Finding the Fourth Proportional to 27,894.01, 38,493.69 and 15,318.76

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Solution

The fourth proportional to 27,894.01, 38,493.69 and 15,318.76 is: 21,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,894.01 : 38,493.69 = 15,318.76 : x
  2. Step 2: Convert to fraction form
    27,894.01/38,493.69 = 15,318.76/x
  3. Step 3: Cross multiply
    27,894.01x = 38,493.69 × 15,318.76
  4. Step 4: Simplify right side
    27,894.01x = 589,675,560.20
  5. Step 5: Solve for x
    x = 589,675,560.20/27,894.01
  6. Step 6: Final answer
    x = 21,139.86

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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.