Home / 30,976.80-46,470.24-19,302.72

Finding the Fourth Proportional to 30,976.80, 46,470.24 and 19,302.72

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Solution

The fourth proportional to 30,976.80, 46,470.24 and 19,302.72 is: 28,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976.80 : 46,470.24 = 19,302.72 : x
  2. Step 2: Convert to fraction form
    30,976.80/46,470.24 = 19,302.72/x
  3. Step 3: Cross multiply
    30,976.80x = 46,470.24 × 19,302.72
  4. Step 4: Simplify right side
    30,976.80x = 897,002,031.05
  5. Step 5: Solve for x
    x = 897,002,031.05/30,976.80
  6. Step 6: Final answer
    x = 28,957.22

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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.