Home / 40,355.12-55,689.71-22,450.56

Finding the Fourth Proportional to 40,355.12, 55,689.71 and 22,450.56

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Solution

The fourth proportional to 40,355.12, 55,689.71 and 22,450.56 is: 30,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,355.12 : 55,689.71 = 22,450.56 : x
  2. Step 2: Convert to fraction form
    40,355.12/55,689.71 = 22,450.56/x
  3. Step 3: Cross multiply
    40,355.12x = 55,689.71 × 22,450.56
  4. Step 4: Simplify right side
    40,355.12x = 1,250,265,063.48
  5. Step 5: Solve for x
    x = 1,250,265,063.48/40,355.12
  6. Step 6: Final answer
    x = 30,981.58

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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.