Home / 31,117.97-42,941.09-17,687.36

Finding the Fourth Proportional to 31,117.97, 42,941.09 and 17,687.36

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Solution

The fourth proportional to 31,117.97, 42,941.09 and 17,687.36 is: 24,407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,117.97 : 42,941.09 = 17,687.36 : x
  2. Step 2: Convert to fraction form
    31,117.97/42,941.09 = 17,687.36/x
  3. Step 3: Cross multiply
    31,117.97x = 42,941.09 × 17,687.36
  4. Step 4: Simplify right side
    31,117.97x = 759,514,214.48
  5. Step 5: Solve for x
    x = 759,514,214.48/31,117.97
  6. Step 6: Final answer
    x = 24,407.58

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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.