Home / 31,380.12-47,066.73-9,193.71

Finding the Fourth Proportional to 31,380.12, 47,066.73 and 9,193.71

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Solution

The fourth proportional to 31,380.12, 47,066.73 and 9,193.71 is: 13,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,380.12 : 47,066.73 = 9,193.71 : x
  2. Step 2: Convert to fraction form
    31,380.12/47,066.73 = 9,193.71/x
  3. Step 3: Cross multiply
    31,380.12x = 47,066.73 × 9,193.71
  4. Step 4: Simplify right side
    31,380.12x = 432,717,866.27
  5. Step 5: Solve for x
    x = 432,717,866.27/31,380.12
  6. Step 6: Final answer
    x = 13,789.55

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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.