Home / 31,290.44-43,179.72-17,143.52

Finding the Fourth Proportional to 31,290.44, 43,179.72 and 17,143.52

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Solution

The fourth proportional to 31,290.44, 43,179.72 and 17,143.52 is: 23,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.44 : 43,179.72 = 17,143.52 : x
  2. Step 2: Convert to fraction form
    31,290.44/43,179.72 = 17,143.52/x
  3. Step 3: Cross multiply
    31,290.44x = 43,179.72 × 17,143.52
  4. Step 4: Simplify right side
    31,290.44x = 740,252,393.41
  5. Step 5: Solve for x
    x = 740,252,393.41/31,290.44
  6. Step 6: Final answer
    x = 23,657.46

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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.