Home / 20,554.11-30,831.15-5,765.22

Finding the Fourth Proportional to 20,554.11, 30,831.15 and 5,765.22

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Solution

The fourth proportional to 20,554.11, 30,831.15 and 5,765.22 is: 8,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.11 : 30,831.15 = 5,765.22 : x
  2. Step 2: Convert to fraction form
    20,554.11/30,831.15 = 5,765.22/x
  3. Step 3: Cross multiply
    20,554.11x = 30,831.15 × 5,765.22
  4. Step 4: Simplify right side
    20,554.11x = 177,748,362.60
  5. Step 5: Solve for x
    x = 177,748,362.60/20,554.11
  6. Step 6: Final answer
    x = 8,647.83

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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.