Home / 20,248.10-30,375.59-6,920.36

Finding the Fourth Proportional to 20,248.10, 30,375.59 and 6,920.36

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Solution

The fourth proportional to 20,248.10, 30,375.59 and 6,920.36 is: 10,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.10 : 30,375.59 = 6,920.36 : x
  2. Step 2: Convert to fraction form
    20,248.10/30,375.59 = 6,920.36/x
  3. Step 3: Cross multiply
    20,248.10x = 30,375.59 × 6,920.36
  4. Step 4: Simplify right side
    20,248.10x = 210,209,831.53
  5. Step 5: Solve for x
    x = 210,209,831.53/20,248.10
  6. Step 6: Final answer
    x = 10,381.71

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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.