Home / 31,419.80-43,359.47-17,273.55

Finding the Fourth Proportional to 31,419.80, 43,359.47 and 17,273.55

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Solution

The fourth proportional to 31,419.80, 43,359.47 and 17,273.55 is: 23,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.80 : 43,359.47 = 17,273.55 : x
  2. Step 2: Convert to fraction form
    31,419.80/43,359.47 = 17,273.55/x
  3. Step 3: Cross multiply
    31,419.80x = 43,359.47 × 17,273.55
  4. Step 4: Simplify right side
    31,419.80x = 748,971,886.65
  5. Step 5: Solve for x
    x = 748,971,886.65/31,419.80
  6. Step 6: Final answer
    x = 23,837.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.