Home / 39,742.28-54,844.17-21,837.23

Finding the Fourth Proportional to 39,742.28, 54,844.17 and 21,837.23

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Solution

The fourth proportional to 39,742.28, 54,844.17 and 21,837.23 is: 30,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,742.28 : 54,844.17 = 21,837.23 : x
  2. Step 2: Convert to fraction form
    39,742.28/54,844.17 = 21,837.23/x
  3. Step 3: Cross multiply
    39,742.28x = 54,844.17 × 21,837.23
  4. Step 4: Simplify right side
    39,742.28x = 1,197,644,754.45
  5. Step 5: Solve for x
    x = 1,197,644,754.45/39,742.28
  6. Step 6: Final answer
    x = 30,135.28

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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.