Home / 18,956.32-28,436.10-5,809.84

Finding the Fourth Proportional to 18,956.32, 28,436.10 and 5,809.84

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Solution

The fourth proportional to 18,956.32, 28,436.10 and 5,809.84 is: 8,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.32 : 28,436.10 = 5,809.84 : x
  2. Step 2: Convert to fraction form
    18,956.32/28,436.10 = 5,809.84/x
  3. Step 3: Cross multiply
    18,956.32x = 28,436.10 × 5,809.84
  4. Step 4: Simplify right side
    18,956.32x = 165,209,191.22
  5. Step 5: Solve for x
    x = 165,209,191.22/18,956.32
  6. Step 6: Final answer
    x = 8,715.26

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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.