Home / 18,485.58-25,542.63-16,123.62

Finding the Fourth Proportional to 18,485.58, 25,542.63 and 16,123.62

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Solution

The fourth proportional to 18,485.58, 25,542.63 and 16,123.62 is: 22,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.58 : 25,542.63 = 16,123.62 : x
  2. Step 2: Convert to fraction form
    18,485.58/25,542.63 = 16,123.62/x
  3. Step 3: Cross multiply
    18,485.58x = 25,542.63 × 16,123.62
  4. Step 4: Simplify right side
    18,485.58x = 411,839,659.92
  5. Step 5: Solve for x
    x = 411,839,659.92/18,485.58
  6. Step 6: Final answer
    x = 22,278.97

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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.