Home / 39,844.64-54,983.60-21,941.20

Finding the Fourth Proportional to 39,844.64, 54,983.60 and 21,941.20

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Solution

The fourth proportional to 39,844.64, 54,983.60 and 21,941.20 is: 30,277.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,844.64 : 54,983.60 = 21,941.20 : x
  2. Step 2: Convert to fraction form
    39,844.64/54,983.60 = 21,941.20/x
  3. Step 3: Cross multiply
    39,844.64x = 54,983.60 × 21,941.20
  4. Step 4: Simplify right side
    39,844.64x = 1,206,406,164.32
  5. Step 5: Solve for x
    x = 1,206,406,164.32/39,844.64
  6. Step 6: Final answer
    x = 30,277.75

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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.