Home / 20,762.44-28,652.24-11,331.20

Finding the Fourth Proportional to 20,762.44, 28,652.24 and 11,331.20

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Solution

The fourth proportional to 20,762.44, 28,652.24 and 11,331.20 is: 15,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.44 : 28,652.24 = 11,331.20 : x
  2. Step 2: Convert to fraction form
    20,762.44/28,652.24 = 11,331.20/x
  3. Step 3: Cross multiply
    20,762.44x = 28,652.24 × 11,331.20
  4. Step 4: Simplify right side
    20,762.44x = 324,664,261.89
  5. Step 5: Solve for x
    x = 324,664,261.89/20,762.44
  6. Step 6: Final answer
    x = 15,637.10

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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.