Home / 30,113.12-41,556-16,865.12

Finding the Fourth Proportional to 30,113.12, 41,556 and 16,865.12

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Solution

The fourth proportional to 30,113.12, 41,556 and 16,865.12 is: 23,273.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,113.12 : 41,556 = 16,865.12 : x
  2. Step 2: Convert to fraction form
    30,113.12/41,556 = 16,865.12/x
  3. Step 3: Cross multiply
    30,113.12x = 41,556 × 16,865.12
  4. Step 4: Simplify right side
    30,113.12x = 700,846,926.72
  5. Step 5: Solve for x
    x = 700,846,926.72/30,113.12
  6. Step 6: Final answer
    x = 23,273.81

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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.