Home / 28,107.74-38,794.05-18,048.89

Finding the Fourth Proportional to 28,107.74, 38,794.05 and 18,048.89

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Solution

The fourth proportional to 28,107.74, 38,794.05 and 18,048.89 is: 24,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.74 : 38,794.05 = 18,048.89 : x
  2. Step 2: Convert to fraction form
    28,107.74/38,794.05 = 18,048.89/x
  3. Step 3: Cross multiply
    28,107.74x = 38,794.05 × 18,048.89
  4. Step 4: Simplify right side
    28,107.74x = 700,189,347.13
  5. Step 5: Solve for x
    x = 700,189,347.13/28,107.74
  6. Step 6: Final answer
    x = 24,910.91

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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.