Home / 20,401.49-28,155.51-11,327.33

Finding the Fourth Proportional to 20,401.49, 28,155.51 and 11,327.33

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Solution

The fourth proportional to 20,401.49, 28,155.51 and 11,327.33 is: 15,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.49 : 28,155.51 = 11,327.33 : x
  2. Step 2: Convert to fraction form
    20,401.49/28,155.51 = 11,327.33/x
  3. Step 3: Cross multiply
    20,401.49x = 28,155.51 × 11,327.33
  4. Step 4: Simplify right side
    20,401.49x = 318,926,612.31
  5. Step 5: Solve for x
    x = 318,926,612.31/20,401.49
  6. Step 6: Final answer
    x = 15,632.52

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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.