Home / 31,243.57-43,071.28-22,275.51

Finding the Fourth Proportional to 31,243.57, 43,071.28 and 22,275.51

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Solution

The fourth proportional to 31,243.57, 43,071.28 and 22,275.51 is: 30,708.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.57 : 43,071.28 = 22,275.51 : x
  2. Step 2: Convert to fraction form
    31,243.57/43,071.28 = 22,275.51/x
  3. Step 3: Cross multiply
    31,243.57x = 43,071.28 × 22,275.51
  4. Step 4: Simplify right side
    31,243.57x = 959,434,511.15
  5. Step 5: Solve for x
    x = 959,434,511.15/31,243.57
  6. Step 6: Final answer
    x = 30,708.22

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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.