Home / 25,811.05-38,701.09-8,938.50

Finding the Fourth Proportional to 25,811.05, 38,701.09 and 8,938.50

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Solution

The fourth proportional to 25,811.05, 38,701.09 and 8,938.50 is: 13,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.05 : 38,701.09 = 8,938.50 : x
  2. Step 2: Convert to fraction form
    25,811.05/38,701.09 = 8,938.50/x
  3. Step 3: Cross multiply
    25,811.05x = 38,701.09 × 8,938.50
  4. Step 4: Simplify right side
    25,811.05x = 345,929,648.27
  5. Step 5: Solve for x
    x = 345,929,648.27/25,811.05
  6. Step 6: Final answer
    x = 13,402.39

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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.