Home / 39,540.06-54,564.57-21,634.74

Finding the Fourth Proportional to 39,540.06, 54,564.57 and 21,634.74

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Solution

The fourth proportional to 39,540.06, 54,564.57 and 21,634.74 is: 29,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,540.06 : 54,564.57 = 21,634.74 : x
  2. Step 2: Convert to fraction form
    39,540.06/54,564.57 = 21,634.74/x
  3. Step 3: Cross multiply
    39,540.06x = 54,564.57 × 21,634.74
  4. Step 4: Simplify right side
    39,540.06x = 1,180,490,285.16
  5. Step 5: Solve for x
    x = 1,180,490,285.16/39,540.06
  6. Step 6: Final answer
    x = 29,855.55

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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.