Home / 28,855.53-39,789.24-18,765.27

Finding the Fourth Proportional to 28,855.53, 39,789.24 and 18,765.27

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Solution

The fourth proportional to 28,855.53, 39,789.24 and 18,765.27 is: 25,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,855.53 : 39,789.24 = 18,765.27 : x
  2. Step 2: Convert to fraction form
    28,855.53/39,789.24 = 18,765.27/x
  3. Step 3: Cross multiply
    28,855.53x = 39,789.24 × 18,765.27
  4. Step 4: Simplify right side
    28,855.53x = 746,655,831.69
  5. Step 5: Solve for x
    x = 746,655,831.69/28,855.53
  6. Step 6: Final answer
    x = 25,875.66

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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.