Home / 20,153.42-27,799.17-13,854.86

Finding the Fourth Proportional to 20,153.42, 27,799.17 and 13,854.86

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Solution

The fourth proportional to 20,153.42, 27,799.17 and 13,854.86 is: 19,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.42 : 27,799.17 = 13,854.86 : x
  2. Step 2: Convert to fraction form
    20,153.42/27,799.17 = 13,854.86/x
  3. Step 3: Cross multiply
    20,153.42x = 27,799.17 × 13,854.86
  4. Step 4: Simplify right side
    20,153.42x = 385,153,608.47
  5. Step 5: Solve for x
    x = 385,153,608.47/20,153.42
  6. Step 6: Final answer
    x = 19,111.08

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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.