Home / 30,665.16-45,964.92-15,859.17

Finding the Fourth Proportional to 30,665.16, 45,964.92 and 15,859.17

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Solution

The fourth proportional to 30,665.16, 45,964.92 and 15,859.17 is: 23,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.16 : 45,964.92 = 15,859.17 : x
  2. Step 2: Convert to fraction form
    30,665.16/45,964.92 = 15,859.17/x
  3. Step 3: Cross multiply
    30,665.16x = 45,964.92 × 15,859.17
  4. Step 4: Simplify right side
    30,665.16x = 728,965,480.32
  5. Step 5: Solve for x
    x = 728,965,480.32/30,665.16
  6. Step 6: Final answer
    x = 23,771.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.