Home / 20,220.51-30,310.11-7,062.06

Finding the Fourth Proportional to 20,220.51, 30,310.11 and 7,062.06

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Solution

The fourth proportional to 20,220.51, 30,310.11 and 7,062.06 is: 10,585.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.51 : 30,310.11 = 7,062.06 : x
  2. Step 2: Convert to fraction form
    20,220.51/30,310.11 = 7,062.06/x
  3. Step 3: Cross multiply
    20,220.51x = 30,310.11 × 7,062.06
  4. Step 4: Simplify right side
    20,220.51x = 214,051,780.12
  5. Step 5: Solve for x
    x = 214,051,780.12/20,220.51
  6. Step 6: Final answer
    x = 10,585.87

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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.