Home / 22,743.66-31,386.30-13,185.39

Finding the Fourth Proportional to 22,743.66, 31,386.30 and 13,185.39

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Solution

The fourth proportional to 22,743.66, 31,386.30 and 13,185.39 is: 18,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,743.66 : 31,386.30 = 13,185.39 : x
  2. Step 2: Convert to fraction form
    22,743.66/31,386.30 = 13,185.39/x
  3. Step 3: Cross multiply
    22,743.66x = 31,386.30 × 13,185.39
  4. Step 4: Simplify right side
    22,743.66x = 413,840,606.16
  5. Step 5: Solve for x
    x = 413,840,606.16/22,743.66
  6. Step 6: Final answer
    x = 18,195.87

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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.