Home / 28,865.90-43,269.19-18,343.67

Finding the Fourth Proportional to 28,865.90, 43,269.19 and 18,343.67

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Solution

The fourth proportional to 28,865.90, 43,269.19 and 18,343.67 is: 27,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.90 : 43,269.19 = 18,343.67 : x
  2. Step 2: Convert to fraction form
    28,865.90/43,269.19 = 18,343.67/x
  3. Step 3: Cross multiply
    28,865.90x = 43,269.19 × 18,343.67
  4. Step 4: Simplify right side
    28,865.90x = 793,715,480.32
  5. Step 5: Solve for x
    x = 793,715,480.32/28,865.90
  6. Step 6: Final answer
    x = 27,496.65

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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.