Home / 20,423.46-30,635.10-7,276.32

Finding the Fourth Proportional to 20,423.46, 30,635.10 and 7,276.32

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Solution

The fourth proportional to 20,423.46, 30,635.10 and 7,276.32 is: 10,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.46 : 30,635.10 = 7,276.32 : x
  2. Step 2: Convert to fraction form
    20,423.46/30,635.10 = 7,276.32/x
  3. Step 3: Cross multiply
    20,423.46x = 30,635.10 × 7,276.32
  4. Step 4: Simplify right side
    20,423.46x = 222,910,790.83
  5. Step 5: Solve for x
    x = 222,910,790.83/20,423.46
  6. Step 6: Final answer
    x = 10,914.45

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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.