Home / 39,742.27-54,844.32-21,837.25

Finding the Fourth Proportional to 39,742.27, 54,844.32 and 21,837.25

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Solution

The fourth proportional to 39,742.27, 54,844.32 and 21,837.25 is: 30,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,742.27 : 54,844.32 = 21,837.25 : x
  2. Step 2: Convert to fraction form
    39,742.27/54,844.32 = 21,837.25/x
  3. Step 3: Cross multiply
    39,742.27x = 54,844.32 × 21,837.25
  4. Step 4: Simplify right side
    39,742.27x = 1,197,649,126.92
  5. Step 5: Solve for x
    x = 1,197,649,126.92/39,742.27
  6. Step 6: Final answer
    x = 30,135.40

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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.