Home / 25,938.90-38,914.51-8,408.74

Finding the Fourth Proportional to 25,938.90, 38,914.51 and 8,408.74

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Solution

The fourth proportional to 25,938.90, 38,914.51 and 8,408.74 is: 12,615.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,938.90 : 38,914.51 = 8,408.74 : x
  2. Step 2: Convert to fraction form
    25,938.90/38,914.51 = 8,408.74/x
  3. Step 3: Cross multiply
    25,938.90x = 38,914.51 × 8,408.74
  4. Step 4: Simplify right side
    25,938.90x = 327,221,996.82
  5. Step 5: Solve for x
    x = 327,221,996.82/25,938.90
  6. Step 6: Final answer
    x = 12,615.11

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1.5x scale

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.