Home / 39,702.19-54,789.86-21,797.14

Finding the Fourth Proportional to 39,702.19, 54,789.86 and 21,797.14

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Solution

The fourth proportional to 39,702.19, 54,789.86 and 21,797.14 is: 30,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,702.19 : 54,789.86 = 21,797.14 : x
  2. Step 2: Convert to fraction form
    39,702.19/54,789.86 = 21,797.14/x
  3. Step 3: Cross multiply
    39,702.19x = 54,789.86 × 21,797.14
  4. Step 4: Simplify right side
    39,702.19x = 1,194,262,249.00
  5. Step 5: Solve for x
    x = 1,194,262,249.00/39,702.19
  6. Step 6: Final answer
    x = 30,080.51

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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.