Home / 20,109.57-27,748.08-11,495.63

Finding the Fourth Proportional to 20,109.57, 27,748.08 and 11,495.63

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Solution

The fourth proportional to 20,109.57, 27,748.08 and 11,495.63 is: 15,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.57 : 27,748.08 = 11,495.63 : x
  2. Step 2: Convert to fraction form
    20,109.57/27,748.08 = 11,495.63/x
  3. Step 3: Cross multiply
    20,109.57x = 27,748.08 × 11,495.63
  4. Step 4: Simplify right side
    20,109.57x = 318,981,522.15
  5. Step 5: Solve for x
    x = 318,981,522.15/20,109.57
  6. Step 6: Final answer
    x = 15,862.18

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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.