Home / 31,560.92-43,555.76-18,133.05

Finding the Fourth Proportional to 31,560.92, 43,555.76 and 18,133.05

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Solution

The fourth proportional to 31,560.92, 43,555.76 and 18,133.05 is: 25,024.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.92 : 43,555.76 = 18,133.05 : x
  2. Step 2: Convert to fraction form
    31,560.92/43,555.76 = 18,133.05/x
  3. Step 3: Cross multiply
    31,560.92x = 43,555.76 × 18,133.05
  4. Step 4: Simplify right side
    31,560.92x = 789,798,669.53
  5. Step 5: Solve for x
    x = 789,798,669.53/31,560.92
  6. Step 6: Final answer
    x = 25,024.57

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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.