Home / 40,220.57-55,505.28-22,315.31

Finding the Fourth Proportional to 40,220.57, 55,505.28 and 22,315.31

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Solution

The fourth proportional to 40,220.57, 55,505.28 and 22,315.31 is: 30,795.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,220.57 : 55,505.28 = 22,315.31 : x
  2. Step 2: Convert to fraction form
    40,220.57/55,505.28 = 22,315.31/x
  3. Step 3: Cross multiply
    40,220.57x = 55,505.28 × 22,315.31
  4. Step 4: Simplify right side
    40,220.57x = 1,238,617,252.31
  5. Step 5: Solve for x
    x = 1,238,617,252.31/40,220.57
  6. Step 6: Final answer
    x = 30,795.62

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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.