Home / 25,431.67-38,149.63-8,784.96

Finding the Fourth Proportional to 25,431.67, 38,149.63 and 8,784.96

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Solution

The fourth proportional to 25,431.67, 38,149.63 and 8,784.96 is: 13,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.67 : 38,149.63 = 8,784.96 : x
  2. Step 2: Convert to fraction form
    25,431.67/38,149.63 = 8,784.96/x
  3. Step 3: Cross multiply
    25,431.67x = 38,149.63 × 8,784.96
  4. Step 4: Simplify right side
    25,431.67x = 335,142,857.96
  5. Step 5: Solve for x
    x = 335,142,857.96/25,431.67
  6. Step 6: Final answer
    x = 13,178.17

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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.