Home / 28,901.78-39,884.33-16,154.94

Finding the Fourth Proportional to 28,901.78, 39,884.33 and 16,154.94

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Solution

The fourth proportional to 28,901.78, 39,884.33 and 16,154.94 is: 22,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.78 : 39,884.33 = 16,154.94 : x
  2. Step 2: Convert to fraction form
    28,901.78/39,884.33 = 16,154.94/x
  3. Step 3: Cross multiply
    28,901.78x = 39,884.33 × 16,154.94
  4. Step 4: Simplify right side
    28,901.78x = 644,328,958.09
  5. Step 5: Solve for x
    x = 644,328,958.09/28,901.78
  6. Step 6: Final answer
    x = 22,293.75

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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.