Home / 25,118.96-37,699.14-12,642.56

Finding the Fourth Proportional to 25,118.96, 37,699.14 and 12,642.56

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Solution

The fourth proportional to 25,118.96, 37,699.14 and 12,642.56 is: 18,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,118.96 : 37,699.14 = 12,642.56 : x
  2. Step 2: Convert to fraction form
    25,118.96/37,699.14 = 12,642.56/x
  3. Step 3: Cross multiply
    25,118.96x = 37,699.14 × 12,642.56
  4. Step 4: Simplify right side
    25,118.96x = 476,613,639.40
  5. Step 5: Solve for x
    x = 476,613,639.40/25,118.96
  6. Step 6: Final answer
    x = 18,974.26

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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.