Home / 26,481.98-36,536.18-15,143.40

Finding the Fourth Proportional to 26,481.98, 36,536.18 and 15,143.40

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Solution

The fourth proportional to 26,481.98, 36,536.18 and 15,143.40 is: 20,892.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,481.98 : 36,536.18 = 15,143.40 : x
  2. Step 2: Convert to fraction form
    26,481.98/36,536.18 = 15,143.40/x
  3. Step 3: Cross multiply
    26,481.98x = 36,536.18 × 15,143.40
  4. Step 4: Simplify right side
    26,481.98x = 553,281,912.50
  5. Step 5: Solve for x
    x = 553,281,912.50/26,481.98
  6. Step 6: Final answer
    x = 20,892.77

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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.