Home / 20,002.80-27,611.64-17,903.28

Finding the Fourth Proportional to 20,002.80, 27,611.64 and 17,903.28

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Solution

The fourth proportional to 20,002.80, 27,611.64 and 17,903.28 is: 24,713.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.80 : 27,611.64 = 17,903.28 : x
  2. Step 2: Convert to fraction form
    20,002.80/27,611.64 = 17,903.28/x
  3. Step 3: Cross multiply
    20,002.80x = 27,611.64 × 17,903.28
  4. Step 4: Simplify right side
    20,002.80x = 494,338,922.18
  5. Step 5: Solve for x
    x = 494,338,922.18/20,002.80
  6. Step 6: Final answer
    x = 24,713.49

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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.