Home / 30,516.40-45,781.13-9,455.97

Finding the Fourth Proportional to 30,516.40, 45,781.13 and 9,455.97

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Solution

The fourth proportional to 30,516.40, 45,781.13 and 9,455.97 is: 14,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.40 : 45,781.13 = 9,455.97 : x
  2. Step 2: Convert to fraction form
    30,516.40/45,781.13 = 9,455.97/x
  3. Step 3: Cross multiply
    30,516.40x = 45,781.13 × 9,455.97
  4. Step 4: Simplify right side
    30,516.40x = 432,904,944.57
  5. Step 5: Solve for x
    x = 432,904,944.57/30,516.40
  6. Step 6: Final answer
    x = 14,185.98

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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.