Home / 20,180.88-27,834.72-13,895.28

Finding the Fourth Proportional to 20,180.88, 27,834.72 and 13,895.28

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Solution

The fourth proportional to 20,180.88, 27,834.72 and 13,895.28 is: 19,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.88 : 27,834.72 = 13,895.28 : x
  2. Step 2: Convert to fraction form
    20,180.88/27,834.72 = 13,895.28/x
  3. Step 3: Cross multiply
    20,180.88x = 27,834.72 × 13,895.28
  4. Step 4: Simplify right side
    20,180.88x = 386,771,228.12
  5. Step 5: Solve for x
    x = 386,771,228.12/20,180.88
  6. Step 6: Final answer
    x = 19,165.23

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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.