Home / 20,621.80-30,929.26-5,827.34

Finding the Fourth Proportional to 20,621.80, 30,929.26 and 5,827.34

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Solution

The fourth proportional to 20,621.80, 30,929.26 and 5,827.34 is: 8,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621.80 : 30,929.26 = 5,827.34 : x
  2. Step 2: Convert to fraction form
    20,621.80/30,929.26 = 5,827.34/x
  3. Step 3: Cross multiply
    20,621.80x = 30,929.26 × 5,827.34
  4. Step 4: Simplify right side
    20,621.80x = 180,235,313.97
  5. Step 5: Solve for x
    x = 180,235,313.97/20,621.80
  6. Step 6: Final answer
    x = 8,740.04

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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.