Home / 20,329.15-28,057.56-13,950.49

Finding the Fourth Proportional to 20,329.15, 28,057.56 and 13,950.49

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Solution

The fourth proportional to 20,329.15, 28,057.56 and 13,950.49 is: 19,253.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.15 : 28,057.56 = 13,950.49 : x
  2. Step 2: Convert to fraction form
    20,329.15/28,057.56 = 13,950.49/x
  3. Step 3: Cross multiply
    20,329.15x = 28,057.56 × 13,950.49
  4. Step 4: Simplify right side
    20,329.15x = 391,416,710.20
  5. Step 5: Solve for x
    x = 391,416,710.20/20,329.15
  6. Step 6: Final answer
    x = 19,253.96

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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.