Home / 28,747.31-43,106.36-13,151.57

Finding the Fourth Proportional to 28,747.31, 43,106.36 and 13,151.57

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Solution

The fourth proportional to 28,747.31, 43,106.36 and 13,151.57 is: 19,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.31 : 43,106.36 = 13,151.57 : x
  2. Step 2: Convert to fraction form
    28,747.31/43,106.36 = 13,151.57/x
  3. Step 3: Cross multiply
    28,747.31x = 43,106.36 × 13,151.57
  4. Step 4: Simplify right side
    28,747.31x = 566,916,245.23
  5. Step 5: Solve for x
    x = 566,916,245.23/28,747.31
  6. Step 6: Final answer
    x = 19,720.67

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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.