Home / 18,904.50-28,355.67-5,756.58

Finding the Fourth Proportional to 18,904.50, 28,355.67 and 5,756.58

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Solution

The fourth proportional to 18,904.50, 28,355.67 and 5,756.58 is: 8,634.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.50 : 28,355.67 = 5,756.58 : x
  2. Step 2: Convert to fraction form
    18,904.50/28,355.67 = 5,756.58/x
  3. Step 3: Cross multiply
    18,904.50x = 28,355.67 × 5,756.58
  4. Step 4: Simplify right side
    18,904.50x = 163,231,682.81
  5. Step 5: Solve for x
    x = 163,231,682.81/18,904.50
  6. Step 6: Final answer
    x = 8,634.54

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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.