Home / 39,189.17-54,081.45-21,284.52

Finding the Fourth Proportional to 39,189.17, 54,081.45 and 21,284.52

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Solution

The fourth proportional to 39,189.17, 54,081.45 and 21,284.52 is: 29,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,189.17 : 54,081.45 = 21,284.52 : x
  2. Step 2: Convert to fraction form
    39,189.17/54,081.45 = 21,284.52/x
  3. Step 3: Cross multiply
    39,189.17x = 54,081.45 × 21,284.52
  4. Step 4: Simplify right side
    39,189.17x = 1,151,097,745.69
  5. Step 5: Solve for x
    x = 1,151,097,745.69/39,189.17
  6. Step 6: Final answer
    x = 29,372.86

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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.