Home / 18,764.49-28,178.93-16,660.87

Finding the Fourth Proportional to 18,764.49, 28,178.93 and 16,660.87

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Solution

The fourth proportional to 18,764.49, 28,178.93 and 16,660.87 is: 25,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.49 : 28,178.93 = 16,660.87 : x
  2. Step 2: Convert to fraction form
    18,764.49/28,178.93 = 16,660.87/x
  3. Step 3: Cross multiply
    18,764.49x = 28,178.93 × 16,660.87
  4. Step 4: Simplify right side
    18,764.49x = 469,485,489.47
  5. Step 5: Solve for x
    x = 469,485,489.47/18,764.49
  6. Step 6: Final answer
    x = 25,019.89

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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.