Home / 39,742.01-54,843.59-21,836.63

Finding the Fourth Proportional to 39,742.01, 54,843.59 and 21,836.63

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Solution

The fourth proportional to 39,742.01, 54,843.59 and 21,836.63 is: 30,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,742.01 : 54,843.59 = 21,836.63 : x
  2. Step 2: Convert to fraction form
    39,742.01/54,843.59 = 21,836.63/x
  3. Step 3: Cross multiply
    39,742.01x = 54,843.59 × 21,836.63
  4. Step 4: Simplify right side
    39,742.01x = 1,197,599,073.52
  5. Step 5: Solve for x
    x = 1,197,599,073.52/39,742.01
  6. Step 6: Final answer
    x = 30,134.34

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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.