Home / 20,894.09-28,832.96-11,462.04

Finding the Fourth Proportional to 20,894.09, 28,832.96 and 11,462.04

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Solution

The fourth proportional to 20,894.09, 28,832.96 and 11,462.04 is: 15,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.09 : 28,832.96 = 11,462.04 : x
  2. Step 2: Convert to fraction form
    20,894.09/28,832.96 = 11,462.04/x
  3. Step 3: Cross multiply
    20,894.09x = 28,832.96 × 11,462.04
  4. Step 4: Simplify right side
    20,894.09x = 330,484,569.49
  5. Step 5: Solve for x
    x = 330,484,569.49/20,894.09
  6. Step 6: Final answer
    x = 15,817.14

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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.