Home / 20,141.11-30,214.91-8,457.67

Finding the Fourth Proportional to 20,141.11, 30,214.91 and 8,457.67

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Solution

The fourth proportional to 20,141.11, 30,214.91 and 8,457.67 is: 12,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.11 : 30,214.91 = 8,457.67 : x
  2. Step 2: Convert to fraction form
    20,141.11/30,214.91 = 8,457.67/x
  3. Step 3: Cross multiply
    20,141.11x = 30,214.91 × 8,457.67
  4. Step 4: Simplify right side
    20,141.11x = 255,547,737.86
  5. Step 5: Solve for x
    x = 255,547,737.86/20,141.11
  6. Step 6: Final answer
    x = 12,687.87

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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.