Home / 34,247.40-51,338.70-20,218.20

Finding the Fourth Proportional to 34,247.40, 51,338.70 and 20,218.20

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Solution

The fourth proportional to 34,247.40, 51,338.70 and 20,218.20 is: 30,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,247.40 : 51,338.70 = 20,218.20 : x
  2. Step 2: Convert to fraction form
    34,247.40/51,338.70 = 20,218.20/x
  3. Step 3: Cross multiply
    34,247.40x = 51,338.70 × 20,218.20
  4. Step 4: Simplify right side
    34,247.40x = 1,037,976,104.34
  5. Step 5: Solve for x
    x = 1,037,976,104.34/34,247.40
  6. Step 6: Final answer
    x = 30,308.17

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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.