Home / 31,259.46-43,139.61-17,112.90

Finding the Fourth Proportional to 31,259.46, 43,139.61 and 17,112.90

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Solution

The fourth proportional to 31,259.46, 43,139.61 and 17,112.90 is: 23,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,259.46 : 43,139.61 = 17,112.90 : x
  2. Step 2: Convert to fraction form
    31,259.46/43,139.61 = 17,112.90/x
  3. Step 3: Cross multiply
    31,259.46x = 43,139.61 × 17,112.90
  4. Step 4: Simplify right side
    31,259.46x = 738,243,831.97
  5. Step 5: Solve for x
    x = 738,243,831.97/31,259.46
  6. Step 6: Final answer
    x = 23,616.65

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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.