Home / 19,799.42-29,745.57-18,678.56

Finding the Fourth Proportional to 19,799.42, 29,745.57 and 18,678.56

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Solution

The fourth proportional to 19,799.42, 29,745.57 and 18,678.56 is: 28,061.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.42 : 29,745.57 = 18,678.56 : x
  2. Step 2: Convert to fraction form
    19,799.42/29,745.57 = 18,678.56/x
  3. Step 3: Cross multiply
    19,799.42x = 29,745.57 × 18,678.56
  4. Step 4: Simplify right side
    19,799.42x = 555,604,265.25
  5. Step 5: Solve for x
    x = 555,604,265.25/19,799.42
  6. Step 6: Final answer
    x = 28,061.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.