Home / 20,230.32-30,347.91-6,905.55

Finding the Fourth Proportional to 20,230.32, 30,347.91 and 6,905.55

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Solution

The fourth proportional to 20,230.32, 30,347.91 and 6,905.55 is: 10,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.32 : 30,347.91 = 6,905.55 : x
  2. Step 2: Convert to fraction form
    20,230.32/30,347.91 = 6,905.55/x
  3. Step 3: Cross multiply
    20,230.32x = 30,347.91 × 6,905.55
  4. Step 4: Simplify right side
    20,230.32x = 209,569,009.90
  5. Step 5: Solve for x
    x = 209,569,009.90/20,230.32
  6. Step 6: Final answer
    x = 10,359.15

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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.