Home / 20,834.06-31,219.76-8,341.70

Finding the Fourth Proportional to 20,834.06, 31,219.76 and 8,341.70

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Solution

The fourth proportional to 20,834.06, 31,219.76 and 8,341.70 is: 12,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.06 : 31,219.76 = 8,341.70 : x
  2. Step 2: Convert to fraction form
    20,834.06/31,219.76 = 8,341.70/x
  3. Step 3: Cross multiply
    20,834.06x = 31,219.76 × 8,341.70
  4. Step 4: Simplify right side
    20,834.06x = 260,425,871.99
  5. Step 5: Solve for x
    x = 260,425,871.99/20,834.06
  6. Step 6: Final answer
    x = 12,500.01

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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.