Home / 28,894.14-39,874.78-16,146.90

Finding the Fourth Proportional to 28,894.14, 39,874.78 and 16,146.90

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Solution

The fourth proportional to 28,894.14, 39,874.78 and 16,146.90 is: 22,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.14 : 39,874.78 = 16,146.90 : x
  2. Step 2: Convert to fraction form
    28,894.14/39,874.78 = 16,146.90/x
  3. Step 3: Cross multiply
    28,894.14x = 39,874.78 × 16,146.90
  4. Step 4: Simplify right side
    28,894.14x = 643,854,085.18
  5. Step 5: Solve for x
    x = 643,854,085.18/28,894.14
  6. Step 6: Final answer
    x = 22,283.21

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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.