Home / 26,290.76-39,442.39-8,521.43

Finding the Fourth Proportional to 26,290.76, 39,442.39 and 8,521.43

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Solution

The fourth proportional to 26,290.76, 39,442.39 and 8,521.43 is: 12,784.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,290.76 : 39,442.39 = 8,521.43 : x
  2. Step 2: Convert to fraction form
    26,290.76/39,442.39 = 8,521.43/x
  3. Step 3: Cross multiply
    26,290.76x = 39,442.39 × 8,521.43
  4. Step 4: Simplify right side
    26,290.76x = 336,105,346.90
  5. Step 5: Solve for x
    x = 336,105,346.90/26,290.76
  6. Step 6: Final answer
    x = 12,784.16

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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.