Home / 18,736.94-28,115.13-13,585.34

Finding the Fourth Proportional to 18,736.94, 28,115.13 and 13,585.34

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Solution

The fourth proportional to 18,736.94, 28,115.13 and 13,585.34 is: 20,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.94 : 28,115.13 = 13,585.34 : x
  2. Step 2: Convert to fraction form
    18,736.94/28,115.13 = 13,585.34/x
  3. Step 3: Cross multiply
    18,736.94x = 28,115.13 × 13,585.34
  4. Step 4: Simplify right side
    18,736.94x = 381,953,600.19
  5. Step 5: Solve for x
    x = 381,953,600.19/18,736.94
  6. Step 6: Final answer
    x = 20,385.06

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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.