Home / 39,175.20-54,061.61-21,270.06

Finding the Fourth Proportional to 39,175.20, 54,061.61 and 21,270.06

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Solution

The fourth proportional to 39,175.20, 54,061.61 and 21,270.06 is: 29,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,175.20 : 54,061.61 = 21,270.06 : x
  2. Step 2: Convert to fraction form
    39,175.20/54,061.61 = 21,270.06/x
  3. Step 3: Cross multiply
    39,175.20x = 54,061.61 × 21,270.06
  4. Step 4: Simplify right side
    39,175.20x = 1,149,893,582.05
  5. Step 5: Solve for x
    x = 1,149,893,582.05/39,175.20
  6. Step 6: Final answer
    x = 29,352.59

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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.