Home / 28,923.09-39,902.08-18,847.85

Finding the Fourth Proportional to 28,923.09, 39,902.08 and 18,847.85

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Solution

The fourth proportional to 28,923.09, 39,902.08 and 18,847.85 is: 26,002.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923.09 : 39,902.08 = 18,847.85 : x
  2. Step 2: Convert to fraction form
    28,923.09/39,902.08 = 18,847.85/x
  3. Step 3: Cross multiply
    28,923.09x = 39,902.08 × 18,847.85
  4. Step 4: Simplify right side
    28,923.09x = 752,068,418.53
  5. Step 5: Solve for x
    x = 752,068,418.53/28,923.09
  6. Step 6: Final answer
    x = 26,002.35

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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.