Home / 20,762.46-28,652.28-11,331.18

Finding the Fourth Proportional to 20,762.46, 28,652.28 and 11,331.18

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Solution

The fourth proportional to 20,762.46, 28,652.28 and 11,331.18 is: 15,637.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.46 : 28,652.28 = 11,331.18 : x
  2. Step 2: Convert to fraction form
    20,762.46/28,652.28 = 11,331.18/x
  3. Step 3: Cross multiply
    20,762.46x = 28,652.28 × 11,331.18
  4. Step 4: Simplify right side
    20,762.46x = 324,664,142.09
  5. Step 5: Solve for x
    x = 324,664,142.09/20,762.46
  6. Step 6: Final answer
    x = 15,637.07

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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.