Home / 20,363.31-30,540.03-8,510.67

Finding the Fourth Proportional to 20,363.31, 30,540.03 and 8,510.67

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Solution

The fourth proportional to 20,363.31, 30,540.03 and 8,510.67 is: 12,763.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.31 : 30,540.03 = 8,510.67 : x
  2. Step 2: Convert to fraction form
    20,363.31/30,540.03 = 8,510.67/x
  3. Step 3: Cross multiply
    20,363.31x = 30,540.03 × 8,510.67
  4. Step 4: Simplify right side
    20,363.31x = 259,916,117.12
  5. Step 5: Solve for x
    x = 259,916,117.12/20,363.31
  6. Step 6: Final answer
    x = 12,763.94

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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.