Home / 20,164.12-27,803.98-13,791.74

Finding the Fourth Proportional to 20,164.12, 27,803.98 and 13,791.74

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Solution

The fourth proportional to 20,164.12, 27,803.98 and 13,791.74 is: 19,017.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.12 : 27,803.98 = 13,791.74 : x
  2. Step 2: Convert to fraction form
    20,164.12/27,803.98 = 13,791.74/x
  3. Step 3: Cross multiply
    20,164.12x = 27,803.98 × 13,791.74
  4. Step 4: Simplify right side
    20,164.12x = 383,465,263.13
  5. Step 5: Solve for x
    x = 383,465,263.13/20,164.12
  6. Step 6: Final answer
    x = 19,017.21

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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.