Home / 39,702.17-54,789.68-21,797.93

Finding the Fourth Proportional to 39,702.17, 54,789.68 and 21,797.93

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Solution

The fourth proportional to 39,702.17, 54,789.68 and 21,797.93 is: 30,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,702.17 : 54,789.68 = 21,797.93 : x
  2. Step 2: Convert to fraction form
    39,702.17/54,789.68 = 21,797.93/x
  3. Step 3: Cross multiply
    39,702.17x = 54,789.68 × 21,797.93
  4. Step 4: Simplify right side
    39,702.17x = 1,194,301,800.83
  5. Step 5: Solve for x
    x = 1,194,301,800.83/39,702.17
  6. Step 6: Final answer
    x = 30,081.52

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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.