Home / 21,082.03-31,628.51-11,213.19

Finding the Fourth Proportional to 21,082.03, 31,628.51 and 11,213.19

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Solution

The fourth proportional to 21,082.03, 31,628.51 and 11,213.19 is: 16,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.03 : 31,628.51 = 11,213.19 : x
  2. Step 2: Convert to fraction form
    21,082.03/31,628.51 = 11,213.19/x
  3. Step 3: Cross multiply
    21,082.03x = 31,628.51 × 11,213.19
  4. Step 4: Simplify right side
    21,082.03x = 354,656,492.05
  5. Step 5: Solve for x
    x = 354,656,492.05/21,082.03
  6. Step 6: Final answer
    x = 16,822.69

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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.