Home / 39,138.52-54,010.77-22,146.07

Finding the Fourth Proportional to 39,138.52, 54,010.77 and 22,146.07

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Solution

The fourth proportional to 39,138.52, 54,010.77 and 22,146.07 is: 30,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.52 : 54,010.77 = 22,146.07 : x
  2. Step 2: Convert to fraction form
    39,138.52/54,010.77 = 22,146.07/x
  3. Step 3: Cross multiply
    39,138.52x = 54,010.77 × 22,146.07
  4. Step 4: Simplify right side
    39,138.52x = 1,196,126,293.17
  5. Step 5: Solve for x
    x = 1,196,126,293.17/39,138.52
  6. Step 6: Final answer
    x = 30,561.36

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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.