Home / 39,320.22-54,262.56-21,415.58

Finding the Fourth Proportional to 39,320.22, 54,262.56 and 21,415.58

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Solution

The fourth proportional to 39,320.22, 54,262.56 and 21,415.58 is: 29,553.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,320.22 : 54,262.56 = 21,415.58 : x
  2. Step 2: Convert to fraction form
    39,320.22/54,262.56 = 21,415.58/x
  3. Step 3: Cross multiply
    39,320.22x = 54,262.56 × 21,415.58
  4. Step 4: Simplify right side
    39,320.22x = 1,162,064,194.68
  5. Step 5: Solve for x
    x = 1,162,064,194.68/39,320.22
  6. Step 6: Final answer
    x = 29,553.86

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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.