Home / 20,762.58-31,149.14-5,971.18

Finding the Fourth Proportional to 20,762.58, 31,149.14 and 5,971.18

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Solution

The fourth proportional to 20,762.58, 31,149.14 and 5,971.18 is: 8,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.58 : 31,149.14 = 5,971.18 : x
  2. Step 2: Convert to fraction form
    20,762.58/31,149.14 = 5,971.18/x
  3. Step 3: Cross multiply
    20,762.58x = 31,149.14 × 5,971.18
  4. Step 4: Simplify right side
    20,762.58x = 185,997,121.79
  5. Step 5: Solve for x
    x = 185,997,121.79/20,762.58
  6. Step 6: Final answer
    x = 8,958.29

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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.