Home / 18,124.40-27,168.24-12,281.60

Finding the Fourth Proportional to 18,124.40, 27,168.24 and 12,281.60

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Solution

The fourth proportional to 18,124.40, 27,168.24 and 12,281.60 is: 18,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.40 : 27,168.24 = 12,281.60 : x
  2. Step 2: Convert to fraction form
    18,124.40/27,168.24 = 12,281.60/x
  3. Step 3: Cross multiply
    18,124.40x = 27,168.24 × 12,281.60
  4. Step 4: Simplify right side
    18,124.40x = 333,669,456.38
  5. Step 5: Solve for x
    x = 333,669,456.38/18,124.40
  6. Step 6: Final answer
    x = 18,409.96

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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.