Home / 20,697.57-28,562.07-11,265.93

Finding the Fourth Proportional to 20,697.57, 28,562.07 and 11,265.93

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Solution

The fourth proportional to 20,697.57, 28,562.07 and 11,265.93 is: 15,546.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.57 : 28,562.07 = 11,265.93 : x
  2. Step 2: Convert to fraction form
    20,697.57/28,562.07 = 11,265.93/x
  3. Step 3: Cross multiply
    20,697.57x = 28,562.07 × 11,265.93
  4. Step 4: Simplify right side
    20,697.57x = 321,778,281.28
  5. Step 5: Solve for x
    x = 321,778,281.28/20,697.57
  6. Step 6: Final answer
    x = 15,546.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.