Home / 39,243.06-54,155.52-21,338.06

Finding the Fourth Proportional to 39,243.06, 54,155.52 and 21,338.06

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Solution

The fourth proportional to 39,243.06, 54,155.52 and 21,338.06 is: 29,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,243.06 : 54,155.52 = 21,338.06 : x
  2. Step 2: Convert to fraction form
    39,243.06/54,155.52 = 21,338.06/x
  3. Step 3: Cross multiply
    39,243.06x = 54,155.52 × 21,338.06
  4. Step 4: Simplify right side
    39,243.06x = 1,155,573,464.31
  5. Step 5: Solve for x
    x = 1,155,573,464.31/39,243.06
  6. Step 6: Final answer
    x = 29,446.57

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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.