Home / 20,069.61-27,695.75-10,994.90

Finding the Fourth Proportional to 20,069.61, 27,695.75 and 10,994.90

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Solution

The fourth proportional to 20,069.61, 27,695.75 and 10,994.90 is: 15,172.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.61 : 27,695.75 = 10,994.90 : x
  2. Step 2: Convert to fraction form
    20,069.61/27,695.75 = 10,994.90/x
  3. Step 3: Cross multiply
    20,069.61x = 27,695.75 × 10,994.90
  4. Step 4: Simplify right side
    20,069.61x = 304,512,001.68
  5. Step 5: Solve for x
    x = 304,512,001.68/20,069.61
  6. Step 6: Final answer
    x = 15,172.79

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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.