Home / 27,604.80-38,099.52-15,665.76

Finding the Fourth Proportional to 27,604.80, 38,099.52 and 15,665.76

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Solution

The fourth proportional to 27,604.80, 38,099.52 and 15,665.76 is: 21,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,604.80 : 38,099.52 = 15,665.76 : x
  2. Step 2: Convert to fraction form
    27,604.80/38,099.52 = 15,665.76/x
  3. Step 3: Cross multiply
    27,604.80x = 38,099.52 × 15,665.76
  4. Step 4: Simplify right side
    27,604.80x = 596,857,936.44
  5. Step 5: Solve for x
    x = 596,857,936.44/27,604.80
  6. Step 6: Final answer
    x = 21,621.53

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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.