Home / 38,067.23-52,538.30-21,931.40

Finding the Fourth Proportional to 38,067.23, 52,538.30 and 21,931.40

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Solution

The fourth proportional to 38,067.23, 52,538.30 and 21,931.40 is: 30,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,067.23 : 52,538.30 = 21,931.40 : x
  2. Step 2: Convert to fraction form
    38,067.23/52,538.30 = 21,931.40/x
  3. Step 3: Cross multiply
    38,067.23x = 52,538.30 × 21,931.40
  4. Step 4: Simplify right side
    38,067.23x = 1,152,238,284.24
  5. Step 5: Solve for x
    x = 1,152,238,284.24/38,067.23
  6. Step 6: Final answer
    x = 30,268.51

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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.