Home / 31,778.82-43,851.45-19,675.59

Finding the Fourth Proportional to 31,778.82, 43,851.45 and 19,675.59

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Solution

The fourth proportional to 31,778.82, 43,851.45 and 19,675.59 is: 27,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.82 : 43,851.45 = 19,675.59 : x
  2. Step 2: Convert to fraction form
    31,778.82/43,851.45 = 19,675.59/x
  3. Step 3: Cross multiply
    31,778.82x = 43,851.45 × 19,675.59
  4. Step 4: Simplify right side
    31,778.82x = 862,803,151.11
  5. Step 5: Solve for x
    x = 862,803,151.11/31,778.82
  6. Step 6: Final answer
    x = 27,150.26

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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.