Home / 20,283.34-27,990.94-11,208.45

Finding the Fourth Proportional to 20,283.34, 27,990.94 and 11,208.45

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Solution

The fourth proportional to 20,283.34, 27,990.94 and 11,208.45 is: 15,467.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.34 : 27,990.94 = 11,208.45 : x
  2. Step 2: Convert to fraction form
    20,283.34/27,990.94 = 11,208.45/x
  3. Step 3: Cross multiply
    20,283.34x = 27,990.94 × 11,208.45
  4. Step 4: Simplify right side
    20,283.34x = 313,734,925.42
  5. Step 5: Solve for x
    x = 313,734,925.42/20,283.34
  6. Step 6: Final answer
    x = 15,467.62

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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.