Home / 20,193.90-27,859.86-12,637.14

Finding the Fourth Proportional to 20,193.90, 27,859.86 and 12,637.14

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Solution

The fourth proportional to 20,193.90, 27,859.86 and 12,637.14 is: 17,434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.90 : 27,859.86 = 12,637.14 : x
  2. Step 2: Convert to fraction form
    20,193.90/27,859.86 = 12,637.14/x
  3. Step 3: Cross multiply
    20,193.90x = 27,859.86 × 12,637.14
  4. Step 4: Simplify right side
    20,193.90x = 352,068,951.20
  5. Step 5: Solve for x
    x = 352,068,951.20/20,193.90
  6. Step 6: Final answer
    x = 17,434.42

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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.