Home / 20,762.69-28,652.42-11,331.24

Finding the Fourth Proportional to 20,762.69, 28,652.42 and 11,331.24

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Solution

The fourth proportional to 20,762.69, 28,652.42 and 11,331.24 is: 15,637.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.69 : 28,652.42 = 11,331.24 : x
  2. Step 2: Convert to fraction form
    20,762.69/28,652.42 = 11,331.24/x
  3. Step 3: Cross multiply
    20,762.69x = 28,652.42 × 11,331.24
  4. Step 4: Simplify right side
    20,762.69x = 324,667,390.94
  5. Step 5: Solve for x
    x = 324,667,390.94/20,762.69
  6. Step 6: Final answer
    x = 15,637.06

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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.