Home / 25,402.31-38,105.27-8,762.09

Finding the Fourth Proportional to 25,402.31, 38,105.27 and 8,762.09

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Solution

The fourth proportional to 25,402.31, 38,105.27 and 8,762.09 is: 13,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,402.31 : 38,105.27 = 8,762.09 : x
  2. Step 2: Convert to fraction form
    25,402.31/38,105.27 = 8,762.09/x
  3. Step 3: Cross multiply
    25,402.31x = 38,105.27 × 8,762.09
  4. Step 4: Simplify right side
    25,402.31x = 333,881,570.88
  5. Step 5: Solve for x
    x = 333,881,570.88/25,402.31
  6. Step 6: Final answer
    x = 13,143.75

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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.