Home / 20,850.90-31,281.21-6,060.11

Finding the Fourth Proportional to 20,850.90, 31,281.21 and 6,060.11

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Solution

The fourth proportional to 20,850.90, 31,281.21 and 6,060.11 is: 9,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.90 : 31,281.21 = 6,060.11 : x
  2. Step 2: Convert to fraction form
    20,850.90/31,281.21 = 6,060.11/x
  3. Step 3: Cross multiply
    20,850.90x = 31,281.21 × 6,060.11
  4. Step 4: Simplify right side
    20,850.90x = 189,567,417.13
  5. Step 5: Solve for x
    x = 189,567,417.13/20,850.90
  6. Step 6: Final answer
    x = 9,091.57

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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.