Home / 20,361.16-28,097.85-11,409.22

Finding the Fourth Proportional to 20,361.16, 28,097.85 and 11,409.22

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Solution

The fourth proportional to 20,361.16, 28,097.85 and 11,409.22 is: 15,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.16 : 28,097.85 = 11,409.22 : x
  2. Step 2: Convert to fraction form
    20,361.16/28,097.85 = 11,409.22/x
  3. Step 3: Cross multiply
    20,361.16x = 28,097.85 × 11,409.22
  4. Step 4: Simplify right side
    20,361.16x = 320,574,552.18
  5. Step 5: Solve for x
    x = 320,574,552.18/20,361.16
  6. Step 6: Final answer
    x = 15,744.41

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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.