Home / 31,777.36-43,854.72-18,351.04

Finding the Fourth Proportional to 31,777.36, 43,854.72 and 18,351.04

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Solution

The fourth proportional to 31,777.36, 43,854.72 and 18,351.04 is: 25,325.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.36 : 43,854.72 = 18,351.04 : x
  2. Step 2: Convert to fraction form
    31,777.36/43,854.72 = 18,351.04/x
  3. Step 3: Cross multiply
    31,777.36x = 43,854.72 × 18,351.04
  4. Step 4: Simplify right side
    31,777.36x = 804,779,720.91
  5. Step 5: Solve for x
    x = 804,779,720.91/31,777.36
  6. Step 6: Final answer
    x = 25,325.57

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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.