Home / 20,014.30-30,021.47-5,223.20

Finding the Fourth Proportional to 20,014.30, 30,021.47 and 5,223.20

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Solution

The fourth proportional to 20,014.30, 30,021.47 and 5,223.20 is: 7,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.30 : 30,021.47 = 5,223.20 : x
  2. Step 2: Convert to fraction form
    20,014.30/30,021.47 = 5,223.20/x
  3. Step 3: Cross multiply
    20,014.30x = 30,021.47 × 5,223.20
  4. Step 4: Simplify right side
    20,014.30x = 156,808,115.99
  5. Step 5: Solve for x
    x = 156,808,115.99/20,014.30
  6. Step 6: Final answer
    x = 7,834.81

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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.