Home / 25,408.90-38,114.79-7,881.22

Finding the Fourth Proportional to 25,408.90, 38,114.79 and 7,881.22

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Solution

The fourth proportional to 25,408.90, 38,114.79 and 7,881.22 is: 11,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,408.90 : 38,114.79 = 7,881.22 : x
  2. Step 2: Convert to fraction form
    25,408.90/38,114.79 = 7,881.22/x
  3. Step 3: Cross multiply
    25,408.90x = 38,114.79 × 7,881.22
  4. Step 4: Simplify right side
    25,408.90x = 300,391,045.24
  5. Step 5: Solve for x
    x = 300,391,045.24/25,408.90
  6. Step 6: Final answer
    x = 11,822.28

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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.