Home / 31,731.04-47,579.92-10,949.76

Finding the Fourth Proportional to 31,731.04, 47,579.92 and 10,949.76

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Solution

The fourth proportional to 31,731.04, 47,579.92 and 10,949.76 is: 16,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,731.04 : 47,579.92 = 10,949.76 : x
  2. Step 2: Convert to fraction form
    31,731.04/47,579.92 = 10,949.76/x
  3. Step 3: Cross multiply
    31,731.04x = 47,579.92 × 10,949.76
  4. Step 4: Simplify right side
    31,731.04x = 520,988,704.82
  5. Step 5: Solve for x
    x = 520,988,704.82/31,731.04
  6. Step 6: Final answer
    x = 16,418.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.