Home / 28,306.28-39,051.78-18,233.94

Finding the Fourth Proportional to 28,306.28, 39,051.78 and 18,233.94

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Solution

The fourth proportional to 28,306.28, 39,051.78 and 18,233.94 is: 25,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.28 : 39,051.78 = 18,233.94 : x
  2. Step 2: Convert to fraction form
    28,306.28/39,051.78 = 18,233.94/x
  3. Step 3: Cross multiply
    28,306.28x = 39,051.78 × 18,233.94
  4. Step 4: Simplify right side
    28,306.28x = 712,067,813.41
  5. Step 5: Solve for x
    x = 712,067,813.41/28,306.28
  6. Step 6: Final answer
    x = 25,155.82

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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.