Home / 20,795.16-28,697.28-11,842.67

Finding the Fourth Proportional to 20,795.16, 28,697.28 and 11,842.67

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Solution

The fourth proportional to 20,795.16, 28,697.28 and 11,842.67 is: 16,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.16 : 28,697.28 = 11,842.67 : x
  2. Step 2: Convert to fraction form
    20,795.16/28,697.28 = 11,842.67/x
  3. Step 3: Cross multiply
    20,795.16x = 28,697.28 × 11,842.67
  4. Step 4: Simplify right side
    20,795.16x = 339,852,273.45
  5. Step 5: Solve for x
    x = 339,852,273.45/20,795.16
  6. Step 6: Final answer
    x = 16,342.85

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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.