Home / 18,228.40-27,269.70-15,790.30

Finding the Fourth Proportional to 18,228.40, 27,269.70 and 15,790.30

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Solution

The fourth proportional to 18,228.40, 27,269.70 and 15,790.30 is: 23,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.40 : 27,269.70 = 15,790.30 : x
  2. Step 2: Convert to fraction form
    18,228.40/27,269.70 = 15,790.30/x
  3. Step 3: Cross multiply
    18,228.40x = 27,269.70 × 15,790.30
  4. Step 4: Simplify right side
    18,228.40x = 430,596,743.91
  5. Step 5: Solve for x
    x = 430,596,743.91/18,228.40
  6. Step 6: Final answer
    x = 23,622.30

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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.