Home / 31,213.65-46,781.07-19,964.73

Finding the Fourth Proportional to 31,213.65, 46,781.07 and 19,964.73

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Solution

The fourth proportional to 31,213.65, 46,781.07 and 19,964.73 is: 29,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,213.65 : 46,781.07 = 19,964.73 : x
  2. Step 2: Convert to fraction form
    31,213.65/46,781.07 = 19,964.73/x
  3. Step 3: Cross multiply
    31,213.65x = 46,781.07 × 19,964.73
  4. Step 4: Simplify right side
    31,213.65x = 933,971,325.23
  5. Step 5: Solve for x
    x = 933,971,325.23/31,213.65
  6. Step 6: Final answer
    x = 29,921.88

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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.