Home / 30,837.42-42,544.26-20,241.45

Finding the Fourth Proportional to 30,837.42, 42,544.26 and 20,241.45

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Solution

The fourth proportional to 30,837.42, 42,544.26 and 20,241.45 is: 27,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.42 : 42,544.26 = 20,241.45 : x
  2. Step 2: Convert to fraction form
    30,837.42/42,544.26 = 20,241.45/x
  3. Step 3: Cross multiply
    30,837.42x = 42,544.26 × 20,241.45
  4. Step 4: Simplify right side
    30,837.42x = 861,157,511.58
  5. Step 5: Solve for x
    x = 861,157,511.58/30,837.42
  6. Step 6: Final answer
    x = 27,925.73

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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.