Home / 31,422.75-43,363.47-17,275.70

Finding the Fourth Proportional to 31,422.75, 43,363.47 and 17,275.70

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Solution

The fourth proportional to 31,422.75, 43,363.47 and 17,275.70 is: 23,840.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,422.75 : 43,363.47 = 17,275.70 : x
  2. Step 2: Convert to fraction form
    31,422.75/43,363.47 = 17,275.70/x
  3. Step 3: Cross multiply
    31,422.75x = 43,363.47 × 17,275.70
  4. Step 4: Simplify right side
    31,422.75x = 749,134,081.86
  5. Step 5: Solve for x
    x = 749,134,081.86/31,422.75
  6. Step 6: Final answer
    x = 23,840.50

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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.