Home / 38,536.16-53,180.55-21,540.74

Finding the Fourth Proportional to 38,536.16, 53,180.55 and 21,540.74

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Solution

The fourth proportional to 38,536.16, 53,180.55 and 21,540.74 is: 29,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,536.16 : 53,180.55 = 21,540.74 : x
  2. Step 2: Convert to fraction form
    38,536.16/53,180.55 = 21,540.74/x
  3. Step 3: Cross multiply
    38,536.16x = 53,180.55 × 21,540.74
  4. Step 4: Simplify right side
    38,536.16x = 1,145,548,134.70
  5. Step 5: Solve for x
    x = 1,145,548,134.70/38,536.16
  6. Step 6: Final answer
    x = 29,726.58

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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.