Home / 39,339.54-54,286.61-21,433.46

Finding the Fourth Proportional to 39,339.54, 54,286.61 and 21,433.46

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Solution

The fourth proportional to 39,339.54, 54,286.61 and 21,433.46 is: 29,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,339.54 : 54,286.61 = 21,433.46 : x
  2. Step 2: Convert to fraction form
    39,339.54/54,286.61 = 21,433.46/x
  3. Step 3: Cross multiply
    39,339.54x = 54,286.61 × 21,433.46
  4. Step 4: Simplify right side
    39,339.54x = 1,163,549,505.37
  5. Step 5: Solve for x
    x = 1,163,549,505.37/39,339.54
  6. Step 6: Final answer
    x = 29,577.10

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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.