Home / 28,107.49-38,793.78-18,048.64

Finding the Fourth Proportional to 28,107.49, 38,793.78 and 18,048.64

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Solution

The fourth proportional to 28,107.49, 38,793.78 and 18,048.64 is: 24,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.49 : 38,793.78 = 18,048.64 : x
  2. Step 2: Convert to fraction form
    28,107.49/38,793.78 = 18,048.64/x
  3. Step 3: Cross multiply
    28,107.49x = 38,793.78 × 18,048.64
  4. Step 4: Simplify right side
    28,107.49x = 700,174,969.46
  5. Step 5: Solve for x
    x = 700,174,969.46/28,107.49
  6. Step 6: Final answer
    x = 24,910.62

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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.