Home / 20,344.18-30,363.75-19,015.58

Finding the Fourth Proportional to 20,344.18, 30,363.75 and 19,015.58

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Solution

The fourth proportional to 20,344.18, 30,363.75 and 19,015.58 is: 28,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.18 : 30,363.75 = 19,015.58 : x
  2. Step 2: Convert to fraction form
    20,344.18/30,363.75 = 19,015.58/x
  3. Step 3: Cross multiply
    20,344.18x = 30,363.75 × 19,015.58
  4. Step 4: Simplify right side
    20,344.18x = 577,384,317.23
  5. Step 5: Solve for x
    x = 577,384,317.23/20,344.18
  6. Step 6: Final answer
    x = 28,380.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.