Home / 31,899.36-44,022.56-18,471.20

Finding the Fourth Proportional to 31,899.36, 44,022.56 and 18,471.20

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Solution

The fourth proportional to 31,899.36, 44,022.56 and 18,471.20 is: 25,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,899.36 : 44,022.56 = 18,471.20 : x
  2. Step 2: Convert to fraction form
    31,899.36/44,022.56 = 18,471.20/x
  3. Step 3: Cross multiply
    31,899.36x = 44,022.56 × 18,471.20
  4. Step 4: Simplify right side
    31,899.36x = 813,149,510.27
  5. Step 5: Solve for x
    x = 813,149,510.27/31,899.36
  6. Step 6: Final answer
    x = 25,491.09

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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.