Home / 31,422.78-43,360.65-17,275.32

Finding the Fourth Proportional to 31,422.78, 43,360.65 and 17,275.32

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Solution

The fourth proportional to 31,422.78, 43,360.65 and 17,275.32 is: 23,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422.78 : 43,360.65 = 17,275.32 : x
  2. Step 2: Convert to fraction form
    31,422.78/43,360.65 = 17,275.32/x
  3. Step 3: Cross multiply
    31,422.78x = 43,360.65 × 17,275.32
  4. Step 4: Simplify right side
    31,422.78x = 749,069,104.16
  5. Step 5: Solve for x
    x = 749,069,104.16/31,422.78
  6. Step 6: Final answer
    x = 23,838.41

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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.