Home / 34,887.15-48,142.80-19,780.83

Finding the Fourth Proportional to 34,887.15, 48,142.80 and 19,780.83

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Solution

The fourth proportional to 34,887.15, 48,142.80 and 19,780.83 is: 27,296.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,887.15 : 48,142.80 = 19,780.83 : x
  2. Step 2: Convert to fraction form
    34,887.15/48,142.80 = 19,780.83/x
  3. Step 3: Cross multiply
    34,887.15x = 48,142.80 × 19,780.83
  4. Step 4: Simplify right side
    34,887.15x = 952,304,542.52
  5. Step 5: Solve for x
    x = 952,304,542.52/34,887.15
  6. Step 6: Final answer
    x = 27,296.71

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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.