Home / 20,508.84-28,299.94-11,556.12

Finding the Fourth Proportional to 20,508.84, 28,299.94 and 11,556.12

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Solution

The fourth proportional to 20,508.84, 28,299.94 and 11,556.12 is: 15,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.84 : 28,299.94 = 11,556.12 : x
  2. Step 2: Convert to fraction form
    20,508.84/28,299.94 = 11,556.12/x
  3. Step 3: Cross multiply
    20,508.84x = 28,299.94 × 11,556.12
  4. Step 4: Simplify right side
    20,508.84x = 327,037,502.63
  5. Step 5: Solve for x
    x = 327,037,502.63/20,508.84
  6. Step 6: Final answer
    x = 15,946.17

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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.