Home / 34,680.80-47,859.14-18,764.90

Finding the Fourth Proportional to 34,680.80, 47,859.14 and 18,764.90

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Solution

The fourth proportional to 34,680.80, 47,859.14 and 18,764.90 is: 25,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,680.80 : 47,859.14 = 18,764.90 : x
  2. Step 2: Convert to fraction form
    34,680.80/47,859.14 = 18,764.90/x
  3. Step 3: Cross multiply
    34,680.80x = 47,859.14 × 18,764.90
  4. Step 4: Simplify right side
    34,680.80x = 898,071,976.19
  5. Step 5: Solve for x
    x = 898,071,976.19/34,680.80
  6. Step 6: Final answer
    x = 25,895.37

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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.