Home / 30,073.80-41,535.95-20,497.31

Finding the Fourth Proportional to 30,073.80, 41,535.95 and 20,497.31

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Solution

The fourth proportional to 30,073.80, 41,535.95 and 20,497.31 is: 28,309.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,073.80 : 41,535.95 = 20,497.31 : x
  2. Step 2: Convert to fraction form
    30,073.80/41,535.95 = 20,497.31/x
  3. Step 3: Cross multiply
    30,073.80x = 41,535.95 × 20,497.31
  4. Step 4: Simplify right side
    30,073.80x = 851,375,243.29
  5. Step 5: Solve for x
    x = 851,375,243.29/30,073.80
  6. Step 6: Final answer
    x = 28,309.53

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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.