Home / 20,612.30-30,920.20-6,574.34

Finding the Fourth Proportional to 20,612.30, 30,920.20 and 6,574.34

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Solution

The fourth proportional to 20,612.30, 30,920.20 and 6,574.34 is: 9,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.30 : 30,920.20 = 6,574.34 : x
  2. Step 2: Convert to fraction form
    20,612.30/30,920.20 = 6,574.34/x
  3. Step 3: Cross multiply
    20,612.30x = 30,920.20 × 6,574.34
  4. Step 4: Simplify right side
    20,612.30x = 203,279,907.67
  5. Step 5: Solve for x
    x = 203,279,907.67/20,612.30
  6. Step 6: Final answer
    x = 9,862.07

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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.