Home / 18,021.15-24,861.47-11,302.20

Finding the Fourth Proportional to 18,021.15, 24,861.47 and 11,302.20

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Solution

The fourth proportional to 18,021.15, 24,861.47 and 11,302.20 is: 15,592.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.15 : 24,861.47 = 11,302.20 : x
  2. Step 2: Convert to fraction form
    18,021.15/24,861.47 = 11,302.20/x
  3. Step 3: Cross multiply
    18,021.15x = 24,861.47 × 11,302.20
  4. Step 4: Simplify right side
    18,021.15x = 280,989,249.72
  5. Step 5: Solve for x
    x = 280,989,249.72/18,021.15
  6. Step 6: Final answer
    x = 15,592.19

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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.