Home / 20,349.29-28,081.19-11,851.67

Finding the Fourth Proportional to 20,349.29, 28,081.19 and 11,851.67

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Solution

The fourth proportional to 20,349.29, 28,081.19 and 11,851.67 is: 16,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.29 : 28,081.19 = 11,851.67 : x
  2. Step 2: Convert to fraction form
    20,349.29/28,081.19 = 11,851.67/x
  3. Step 3: Cross multiply
    20,349.29x = 28,081.19 × 11,851.67
  4. Step 4: Simplify right side
    20,349.29x = 332,808,797.42
  5. Step 5: Solve for x
    x = 332,808,797.42/20,349.29
  6. Step 6: Final answer
    x = 16,354.82

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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.