Home / 20,552.12-28,361.81-11,602.53

Finding the Fourth Proportional to 20,552.12, 28,361.81 and 11,602.53

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Solution

The fourth proportional to 20,552.12, 28,361.81 and 11,602.53 is: 16,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.12 : 28,361.81 = 11,602.53 : x
  2. Step 2: Convert to fraction form
    20,552.12/28,361.81 = 11,602.53/x
  3. Step 3: Cross multiply
    20,552.12x = 28,361.81 × 11,602.53
  4. Step 4: Simplify right side
    20,552.12x = 329,068,751.38
  5. Step 5: Solve for x
    x = 329,068,751.38/20,552.12
  6. Step 6: Final answer
    x = 16,011.43

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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.