Home / 15,421.62-23,112.72-13,341.54

Finding the Fourth Proportional to 15,421.62, 23,112.72 and 13,341.54

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Solution

The fourth proportional to 15,421.62, 23,112.72 and 13,341.54 is: 19,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.62 : 23,112.72 = 13,341.54 : x
  2. Step 2: Convert to fraction form
    15,421.62/23,112.72 = 13,341.54/x
  3. Step 3: Cross multiply
    15,421.62x = 23,112.72 × 13,341.54
  4. Step 4: Simplify right side
    15,421.62x = 308,359,278.39
  5. Step 5: Solve for x
    x = 308,359,278.39/15,421.62
  6. Step 6: Final answer
    x = 19,995.26

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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.