Home / 39,840.24-54,980.52-21,933.57

Finding the Fourth Proportional to 39,840.24, 54,980.52 and 21,933.57

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Solution

The fourth proportional to 39,840.24, 54,980.52 and 21,933.57 is: 30,268.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,840.24 : 54,980.52 = 21,933.57 : x
  2. Step 2: Convert to fraction form
    39,840.24/54,980.52 = 21,933.57/x
  3. Step 3: Cross multiply
    39,840.24x = 54,980.52 × 21,933.57
  4. Step 4: Simplify right side
    39,840.24x = 1,205,919,084.06
  5. Step 5: Solve for x
    x = 1,205,919,084.06/39,840.24
  6. Step 6: Final answer
    x = 30,268.87

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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.