Home / 28,863.51-39,854.19-22,138.49

Finding the Fourth Proportional to 28,863.51, 39,854.19 and 22,138.49

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Solution

The fourth proportional to 28,863.51, 39,854.19 and 22,138.49 is: 30,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.51 : 39,854.19 = 22,138.49 : x
  2. Step 2: Convert to fraction form
    28,863.51/39,854.19 = 22,138.49/x
  3. Step 3: Cross multiply
    28,863.51x = 39,854.19 × 22,138.49
  4. Step 4: Simplify right side
    28,863.51x = 882,311,387.50
  5. Step 5: Solve for x
    x = 882,311,387.50/28,863.51
  6. Step 6: Final answer
    x = 30,568.40

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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.