Home / 22,417.60-30,902.49-18,431.80

Finding the Fourth Proportional to 22,417.60, 30,902.49 and 18,431.80

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Solution

The fourth proportional to 22,417.60, 30,902.49 and 18,431.80 is: 25,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,417.60 : 30,902.49 = 18,431.80 : x
  2. Step 2: Convert to fraction form
    22,417.60/30,902.49 = 18,431.80/x
  3. Step 3: Cross multiply
    22,417.60x = 30,902.49 × 18,431.80
  4. Step 4: Simplify right side
    22,417.60x = 569,588,399.30
  5. Step 5: Solve for x
    x = 569,588,399.30/22,417.60
  6. Step 6: Final answer
    x = 25,408.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.