Home / 15,205.89-20,998.62-14,377.58

Finding the Fourth Proportional to 15,205.89, 20,998.62 and 14,377.58

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Solution

The fourth proportional to 15,205.89, 20,998.62 and 14,377.58 is: 19,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,205.89 : 20,998.62 = 14,377.58 : x
  2. Step 2: Convert to fraction form
    15,205.89/20,998.62 = 14,377.58/x
  3. Step 3: Cross multiply
    15,205.89x = 20,998.62 × 14,377.58
  4. Step 4: Simplify right side
    15,205.89x = 301,909,233.95
  5. Step 5: Solve for x
    x = 301,909,233.95/15,205.89
  6. Step 6: Final answer
    x = 19,854.76

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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.