Home / 40,420.98-55,777.56-22,520.22

Finding the Fourth Proportional to 40,420.98, 55,777.56 and 22,520.22

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Solution

The fourth proportional to 40,420.98, 55,777.56 and 22,520.22 is: 31,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.98 : 55,777.56 = 22,520.22 : x
  2. Step 2: Convert to fraction form
    40,420.98/55,777.56 = 22,520.22/x
  3. Step 3: Cross multiply
    40,420.98x = 55,777.56 × 22,520.22
  4. Step 4: Simplify right side
    40,420.98x = 1,256,122,922.26
  5. Step 5: Solve for x
    x = 1,256,122,922.26/40,420.98
  6. Step 6: Final answer
    x = 31,076.01

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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.