Home / 20,657.55-30,937.06-11,283.56

Finding the Fourth Proportional to 20,657.55, 30,937.06 and 11,283.56

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Solution

The fourth proportional to 20,657.55, 30,937.06 and 11,283.56 is: 16,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.55 : 30,937.06 = 11,283.56 : x
  2. Step 2: Convert to fraction form
    20,657.55/30,937.06 = 11,283.56/x
  3. Step 3: Cross multiply
    20,657.55x = 30,937.06 × 11,283.56
  4. Step 4: Simplify right side
    20,657.55x = 349,080,172.73
  5. Step 5: Solve for x
    x = 349,080,172.73/20,657.55
  6. Step 6: Final answer
    x = 16,898.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.