Home / 28,138.59-42,194.82-10,364.76

Finding the Fourth Proportional to 28,138.59, 42,194.82 and 10,364.76

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Solution

The fourth proportional to 28,138.59, 42,194.82 and 10,364.76 is: 15,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138.59 : 42,194.82 = 10,364.76 : x
  2. Step 2: Convert to fraction form
    28,138.59/42,194.82 = 10,364.76/x
  3. Step 3: Cross multiply
    28,138.59x = 42,194.82 × 10,364.76
  4. Step 4: Simplify right side
    28,138.59x = 437,339,182.54
  5. Step 5: Solve for x
    x = 437,339,182.54/28,138.59
  6. Step 6: Final answer
    x = 15,542.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.