Home / 20,106.29-27,746.46-11,153.57

Finding the Fourth Proportional to 20,106.29, 27,746.46 and 11,153.57

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Solution

The fourth proportional to 20,106.29, 27,746.46 and 11,153.57 is: 15,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.29 : 27,746.46 = 11,153.57 : x
  2. Step 2: Convert to fraction form
    20,106.29/27,746.46 = 11,153.57/x
  3. Step 3: Cross multiply
    20,106.29x = 27,746.46 × 11,153.57
  4. Step 4: Simplify right side
    20,106.29x = 309,472,083.86
  5. Step 5: Solve for x
    x = 309,472,083.86/20,106.29
  6. Step 6: Final answer
    x = 15,391.80

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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.