Home / 30,120.66-41,565.76-16,691.67

Finding the Fourth Proportional to 30,120.66, 41,565.76 and 16,691.67

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Solution

The fourth proportional to 30,120.66, 41,565.76 and 16,691.67 is: 23,034.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.66 : 41,565.76 = 16,691.67 : x
  2. Step 2: Convert to fraction form
    30,120.66/41,565.76 = 16,691.67/x
  3. Step 3: Cross multiply
    30,120.66x = 41,565.76 × 16,691.67
  4. Step 4: Simplify right side
    30,120.66x = 693,801,907.49
  5. Step 5: Solve for x
    x = 693,801,907.49/30,120.66
  6. Step 6: Final answer
    x = 23,034.09

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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.