Home / 28,863.76-39,854.54-22,138.74

Finding the Fourth Proportional to 28,863.76, 39,854.54 and 22,138.74

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Solution

The fourth proportional to 28,863.76, 39,854.54 and 22,138.74 is: 30,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.76 : 39,854.54 = 22,138.74 : x
  2. Step 2: Convert to fraction form
    28,863.76/39,854.54 = 22,138.74/x
  3. Step 3: Cross multiply
    28,863.76x = 39,854.54 × 22,138.74
  4. Step 4: Simplify right side
    28,863.76x = 882,329,298.88
  5. Step 5: Solve for x
    x = 882,329,298.88/28,863.76
  6. Step 6: Final answer
    x = 30,568.76

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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.