Home / 30,799.48-42,493.58-18,850.36

Finding the Fourth Proportional to 30,799.48, 42,493.58 and 18,850.36

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Solution

The fourth proportional to 30,799.48, 42,493.58 and 18,850.36 is: 26,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,799.48 : 42,493.58 = 18,850.36 : x
  2. Step 2: Convert to fraction form
    30,799.48/42,493.58 = 18,850.36/x
  3. Step 3: Cross multiply
    30,799.48x = 42,493.58 × 18,850.36
  4. Step 4: Simplify right side
    30,799.48x = 801,019,280.69
  5. Step 5: Solve for x
    x = 801,019,280.69/30,799.48
  6. Step 6: Final answer
    x = 26,007.56

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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.