Home / 25,514.96-38,239.36-18,888.36

Finding the Fourth Proportional to 25,514.96, 38,239.36 and 18,888.36

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Solution

The fourth proportional to 25,514.96, 38,239.36 and 18,888.36 is: 28,308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,514.96 : 38,239.36 = 18,888.36 : x
  2. Step 2: Convert to fraction form
    25,514.96/38,239.36 = 18,888.36/x
  3. Step 3: Cross multiply
    25,514.96x = 38,239.36 × 18,888.36
  4. Step 4: Simplify right side
    25,514.96x = 722,278,797.85
  5. Step 5: Solve for x
    x = 722,278,797.85/25,514.96
  6. Step 6: Final answer
    x = 28,308.05

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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.