Home / 39,338.08-54,287.17-21,433.07

Finding the Fourth Proportional to 39,338.08, 54,287.17 and 21,433.07

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Solution

The fourth proportional to 39,338.08, 54,287.17 and 21,433.07 is: 29,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,338.08 : 54,287.17 = 21,433.07 : x
  2. Step 2: Convert to fraction form
    39,338.08/54,287.17 = 21,433.07/x
  3. Step 3: Cross multiply
    39,338.08x = 54,287.17 × 21,433.07
  4. Step 4: Simplify right side
    39,338.08x = 1,163,540,796.85
  5. Step 5: Solve for x
    x = 1,163,540,796.85/39,338.08
  6. Step 6: Final answer
    x = 29,577.98

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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.