Home / 31,309.75-43,207.46-18,061.75

Finding the Fourth Proportional to 31,309.75, 43,207.46 and 18,061.75

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Solution

The fourth proportional to 31,309.75, 43,207.46 and 18,061.75 is: 24,925.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.75 : 43,207.46 = 18,061.75 : x
  2. Step 2: Convert to fraction form
    31,309.75/43,207.46 = 18,061.75/x
  3. Step 3: Cross multiply
    31,309.75x = 43,207.46 × 18,061.75
  4. Step 4: Simplify right side
    31,309.75x = 780,402,340.66
  5. Step 5: Solve for x
    x = 780,402,340.66/31,309.75
  6. Step 6: Final answer
    x = 24,925.22

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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.