Home / 31,218.57-43,080.97-17,071.40

Finding the Fourth Proportional to 31,218.57, 43,080.97 and 17,071.40

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Solution

The fourth proportional to 31,218.57, 43,080.97 and 17,071.40 is: 23,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218.57 : 43,080.97 = 17,071.40 : x
  2. Step 2: Convert to fraction form
    31,218.57/43,080.97 = 17,071.40/x
  3. Step 3: Cross multiply
    31,218.57x = 43,080.97 × 17,071.40
  4. Step 4: Simplify right side
    31,218.57x = 735,452,471.26
  5. Step 5: Solve for x
    x = 735,452,471.26/31,218.57
  6. Step 6: Final answer
    x = 23,558.17

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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.