Home / 20,276.46-30,421.20-9,747.24

Finding the Fourth Proportional to 20,276.46, 30,421.20 and 9,747.24

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Solution

The fourth proportional to 20,276.46, 30,421.20 and 9,747.24 is: 14,623.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.46 : 30,421.20 = 9,747.24 : x
  2. Step 2: Convert to fraction form
    20,276.46/30,421.20 = 9,747.24/x
  3. Step 3: Cross multiply
    20,276.46x = 30,421.20 × 9,747.24
  4. Step 4: Simplify right side
    20,276.46x = 296,522,737.49
  5. Step 5: Solve for x
    x = 296,522,737.49/20,276.46
  6. Step 6: Final answer
    x = 14,623.99

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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.