Home / 20,279.04-30,419.40-6,961.19

Finding the Fourth Proportional to 20,279.04, 30,419.40 and 6,961.19

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Solution

The fourth proportional to 20,279.04, 30,419.40 and 6,961.19 is: 10,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.04 : 30,419.40 = 6,961.19 : x
  2. Step 2: Convert to fraction form
    20,279.04/30,419.40 = 6,961.19/x
  3. Step 3: Cross multiply
    20,279.04x = 30,419.40 × 6,961.19
  4. Step 4: Simplify right side
    20,279.04x = 211,755,223.09
  5. Step 5: Solve for x
    x = 211,755,223.09/20,279.04
  6. Step 6: Final answer
    x = 10,442.07

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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.