Home / 31,407.45-43,324.97-19,901.31

Finding the Fourth Proportional to 31,407.45, 43,324.97 and 19,901.31

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Solution

The fourth proportional to 31,407.45, 43,324.97 and 19,901.31 is: 27,452.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.45 : 43,324.97 = 19,901.31 : x
  2. Step 2: Convert to fraction form
    31,407.45/43,324.97 = 19,901.31/x
  3. Step 3: Cross multiply
    31,407.45x = 43,324.97 × 19,901.31
  4. Step 4: Simplify right side
    31,407.45x = 862,223,658.71
  5. Step 5: Solve for x
    x = 862,223,658.71/31,407.45
  6. Step 6: Final answer
    x = 27,452.84

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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.