Home / 31,315.22-43,214.64-17,168.06

Finding the Fourth Proportional to 31,315.22, 43,214.64 and 17,168.06

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Solution

The fourth proportional to 31,315.22, 43,214.64 and 17,168.06 is: 23,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.22 : 43,214.64 = 17,168.06 : x
  2. Step 2: Convert to fraction form
    31,315.22/43,214.64 = 17,168.06/x
  3. Step 3: Cross multiply
    31,315.22x = 43,214.64 × 17,168.06
  4. Step 4: Simplify right side
    31,315.22x = 741,911,532.40
  5. Step 5: Solve for x
    x = 741,911,532.40/31,315.22
  6. Step 6: Final answer
    x = 23,691.72

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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.