Home / 28,690.34-42,747.14-27,078.85

Finding the Fourth Proportional to 28,690.34, 42,747.14 and 27,078.85

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Solution

The fourth proportional to 28,690.34, 42,747.14 and 27,078.85 is: 40,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.34 : 42,747.14 = 27,078.85 : x
  2. Step 2: Convert to fraction form
    28,690.34/42,747.14 = 27,078.85/x
  3. Step 3: Cross multiply
    28,690.34x = 42,747.14 × 27,078.85
  4. Step 4: Simplify right side
    28,690.34x = 1,157,543,513.12
  5. Step 5: Solve for x
    x = 1,157,543,513.12/28,690.34
  6. Step 6: Final answer
    x = 40,346.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.