Home / 31,529.56-43,513.02-18,103

Finding the Fourth Proportional to 31,529.56, 43,513.02 and 18,103

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Solution

The fourth proportional to 31,529.56, 43,513.02 and 18,103 is: 24,983.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,529.56 : 43,513.02 = 18,103 : x
  2. Step 2: Convert to fraction form
    31,529.56/43,513.02 = 18,103/x
  3. Step 3: Cross multiply
    31,529.56x = 43,513.02 × 18,103
  4. Step 4: Simplify right side
    31,529.56x = 787,716,201.06
  5. Step 5: Solve for x
    x = 787,716,201.06/31,529.56
  6. Step 6: Final answer
    x = 24,983.42

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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.