Home / 25,721.96-38,514.84-21,036.92

Finding the Fourth Proportional to 25,721.96, 38,514.84 and 21,036.92

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Solution

The fourth proportional to 25,721.96, 38,514.84 and 21,036.92 is: 31,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.96 : 38,514.84 = 21,036.92 : x
  2. Step 2: Convert to fraction form
    25,721.96/38,514.84 = 21,036.92/x
  3. Step 3: Cross multiply
    25,721.96x = 38,514.84 × 21,036.92
  4. Step 4: Simplify right side
    25,721.96x = 810,233,607.89
  5. Step 5: Solve for x
    x = 810,233,607.89/25,721.96
  6. Step 6: Final answer
    x = 31,499.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.