Home / 25,905.90-38,861.00-10,917.36

Finding the Fourth Proportional to 25,905.90, 38,861.00 and 10,917.36

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Solution

The fourth proportional to 25,905.90, 38,861.00 and 10,917.36 is: 16,376.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.90 : 38,861.00 = 10,917.36 : x
  2. Step 2: Convert to fraction form
    25,905.90/38,861.00 = 10,917.36/x
  3. Step 3: Cross multiply
    25,905.90x = 38,861.00 × 10,917.36
  4. Step 4: Simplify right side
    25,905.90x = 424,259,513.31
  5. Step 5: Solve for x
    x = 424,259,513.31/25,905.90
  6. Step 6: Final answer
    x = 16,376.94

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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.