Home / 22,039.72-30,404.64-13,082.16

Finding the Fourth Proportional to 22,039.72, 30,404.64 and 13,082.16

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Solution

The fourth proportional to 22,039.72, 30,404.64 and 13,082.16 is: 18,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,039.72 : 30,404.64 = 13,082.16 : x
  2. Step 2: Convert to fraction form
    22,039.72/30,404.64 = 13,082.16/x
  3. Step 3: Cross multiply
    22,039.72x = 30,404.64 × 13,082.16
  4. Step 4: Simplify right side
    22,039.72x = 397,758,365.22
  5. Step 5: Solve for x
    x = 397,758,365.22/22,039.72
  6. Step 6: Final answer
    x = 18,047.34

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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.