Home / 18,818.19-28,230.53-5,669.46

Finding the Fourth Proportional to 18,818.19, 28,230.53 and 5,669.46

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Solution

The fourth proportional to 18,818.19, 28,230.53 and 5,669.46 is: 8,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.19 : 28,230.53 = 5,669.46 : x
  2. Step 2: Convert to fraction form
    18,818.19/28,230.53 = 5,669.46/x
  3. Step 3: Cross multiply
    18,818.19x = 28,230.53 × 5,669.46
  4. Step 4: Simplify right side
    18,818.19x = 160,051,832.27
  5. Step 5: Solve for x
    x = 160,051,832.27/18,818.19
  6. Step 6: Final answer
    x = 8,505.17

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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.