Home / 40,420.65-55,777.63-22,270.58

Finding the Fourth Proportional to 40,420.65, 55,777.63 and 22,270.58

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Solution

The fourth proportional to 40,420.65, 55,777.63 and 22,270.58 is: 30,731.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.65 : 55,777.63 = 22,270.58 : x
  2. Step 2: Convert to fraction form
    40,420.65/55,777.63 = 22,270.58/x
  3. Step 3: Cross multiply
    40,420.65x = 55,777.63 × 22,270.58
  4. Step 4: Simplify right side
    40,420.65x = 1,242,200,171.13
  5. Step 5: Solve for x
    x = 1,242,200,171.13/40,420.65
  6. Step 6: Final answer
    x = 30,731.82

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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.