Home / 25,590.51-38,409.57-13,119.48

Finding the Fourth Proportional to 25,590.51, 38,409.57 and 13,119.48

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Solution

The fourth proportional to 25,590.51, 38,409.57 and 13,119.48 is: 19,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,590.51 : 38,409.57 = 13,119.48 : x
  2. Step 2: Convert to fraction form
    25,590.51/38,409.57 = 13,119.48/x
  3. Step 3: Cross multiply
    25,590.51x = 38,409.57 × 13,119.48
  4. Step 4: Simplify right side
    25,590.51x = 503,913,585.42
  5. Step 5: Solve for x
    x = 503,913,585.42/25,590.51
  6. Step 6: Final answer
    x = 19,691.42

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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.