Home / 18,910.17-28,315.71-13,333.32

Finding the Fourth Proportional to 18,910.17, 28,315.71 and 13,333.32

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Solution

The fourth proportional to 18,910.17, 28,315.71 and 13,333.32 is: 19,965.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.17 : 28,315.71 = 13,333.32 : x
  2. Step 2: Convert to fraction form
    18,910.17/28,315.71 = 13,333.32/x
  3. Step 3: Cross multiply
    18,910.17x = 28,315.71 × 13,333.32
  4. Step 4: Simplify right side
    18,910.17x = 377,542,422.46
  5. Step 5: Solve for x
    x = 377,542,422.46/18,910.17
  6. Step 6: Final answer
    x = 19,965.05

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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.