Home / 31,864.88-47,785.40-9,368.76

Finding the Fourth Proportional to 31,864.88, 47,785.40 and 9,368.76

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Solution

The fourth proportional to 31,864.88, 47,785.40 and 9,368.76 is: 14,049.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,864.88 : 47,785.40 = 9,368.76 : x
  2. Step 2: Convert to fraction form
    31,864.88/47,785.40 = 9,368.76/x
  3. Step 3: Cross multiply
    31,864.88x = 47,785.40 × 9,368.76
  4. Step 4: Simplify right side
    31,864.88x = 447,689,944.10
  5. Step 5: Solve for x
    x = 447,689,944.10/31,864.88
  6. Step 6: Final answer
    x = 14,049.64

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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.