Home / 31,561.16-43,552.94-18,122.96

Finding the Fourth Proportional to 31,561.16, 43,552.94 and 18,122.96

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Solution

The fourth proportional to 31,561.16, 43,552.94 and 18,122.96 is: 25,008.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.16 : 43,552.94 = 18,122.96 : x
  2. Step 2: Convert to fraction form
    31,561.16/43,552.94 = 18,122.96/x
  3. Step 3: Cross multiply
    31,561.16x = 43,552.94 × 18,122.96
  4. Step 4: Simplify right side
    31,561.16x = 789,307,881.12
  5. Step 5: Solve for x
    x = 789,307,881.12/31,561.16
  6. Step 6: Final answer
    x = 25,008.84

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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.