Home / 40,420.47-55,778.07-22,270.59

Finding the Fourth Proportional to 40,420.47, 55,778.07 and 22,270.59

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Solution

The fourth proportional to 40,420.47, 55,778.07 and 22,270.59 is: 30,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.47 : 55,778.07 = 22,270.59 : x
  2. Step 2: Convert to fraction form
    40,420.47/55,778.07 = 22,270.59/x
  3. Step 3: Cross multiply
    40,420.47x = 55,778.07 × 22,270.59
  4. Step 4: Simplify right side
    40,420.47x = 1,242,210,527.96
  5. Step 5: Solve for x
    x = 1,242,210,527.96/40,420.47
  6. Step 6: Final answer
    x = 30,732.21

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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.