Home / 20,581.29-30,856.95-6,536.70

Finding the Fourth Proportional to 20,581.29, 30,856.95 and 6,536.70

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Solution

The fourth proportional to 20,581.29, 30,856.95 and 6,536.70 is: 9,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.29 : 30,856.95 = 6,536.70 : x
  2. Step 2: Convert to fraction form
    20,581.29/30,856.95 = 6,536.70/x
  3. Step 3: Cross multiply
    20,581.29x = 30,856.95 × 6,536.70
  4. Step 4: Simplify right side
    20,581.29x = 201,702,625.07
  5. Step 5: Solve for x
    x = 201,702,625.07/20,581.29
  6. Step 6: Final answer
    x = 9,800.29

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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.