Home / 39,243.29-54,155.36-21,338.44

Finding the Fourth Proportional to 39,243.29, 54,155.36 and 21,338.44

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Solution

The fourth proportional to 39,243.29, 54,155.36 and 21,338.44 is: 29,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,243.29 : 54,155.36 = 21,338.44 : x
  2. Step 2: Convert to fraction form
    39,243.29/54,155.36 = 21,338.44/x
  3. Step 3: Cross multiply
    39,243.29x = 54,155.36 × 21,338.44
  4. Step 4: Simplify right side
    39,243.29x = 1,155,590,757.98
  5. Step 5: Solve for x
    x = 1,155,590,757.98/39,243.29
  6. Step 6: Final answer
    x = 29,446.84

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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.