Home / 25,647.84-38,507.54-13,178.43

Finding the Fourth Proportional to 25,647.84, 38,507.54 and 13,178.43

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Solution

The fourth proportional to 25,647.84, 38,507.54 and 13,178.43 is: 19,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647.84 : 38,507.54 = 13,178.43 : x
  2. Step 2: Convert to fraction form
    25,647.84/38,507.54 = 13,178.43/x
  3. Step 3: Cross multiply
    25,647.84x = 38,507.54 × 13,178.43
  4. Step 4: Simplify right side
    25,647.84x = 507,468,854.47
  5. Step 5: Solve for x
    x = 507,468,854.47/25,647.84
  6. Step 6: Final answer
    x = 19,786.03

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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.