Home / 19,835.31-29,752.82-18,679.85

Finding the Fourth Proportional to 19,835.31, 29,752.82 and 18,679.85

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Solution

The fourth proportional to 19,835.31, 29,752.82 and 18,679.85 is: 28,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,835.31 : 29,752.82 = 18,679.85 : x
  2. Step 2: Convert to fraction form
    19,835.31/29,752.82 = 18,679.85/x
  3. Step 3: Cross multiply
    19,835.31x = 29,752.82 × 18,679.85
  4. Step 4: Simplify right side
    19,835.31x = 555,778,154.14
  5. Step 5: Solve for x
    x = 555,778,154.14/19,835.31
  6. Step 6: Final answer
    x = 28,019.63

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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.