Home / 31,368.39-43,287.83-17,221.13

Finding the Fourth Proportional to 31,368.39, 43,287.83 and 17,221.13

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Solution

The fourth proportional to 31,368.39, 43,287.83 and 17,221.13 is: 23,764.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,368.39 : 43,287.83 = 17,221.13 : x
  2. Step 2: Convert to fraction form
    31,368.39/43,287.83 = 17,221.13/x
  3. Step 3: Cross multiply
    31,368.39x = 43,287.83 × 17,221.13
  4. Step 4: Simplify right side
    31,368.39x = 745,465,369.08
  5. Step 5: Solve for x
    x = 745,465,369.08/31,368.39
  6. Step 6: Final answer
    x = 23,764.86

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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.