Home / 20,898.03-31,326.89-7,039.47

Finding the Fourth Proportional to 20,898.03, 31,326.89 and 7,039.47

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Solution

The fourth proportional to 20,898.03, 31,326.89 and 7,039.47 is: 10,552.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.03 : 31,326.89 = 7,039.47 : x
  2. Step 2: Convert to fraction form
    20,898.03/31,326.89 = 7,039.47/x
  3. Step 3: Cross multiply
    20,898.03x = 31,326.89 × 7,039.47
  4. Step 4: Simplify right side
    20,898.03x = 220,524,667.15
  5. Step 5: Solve for x
    x = 220,524,667.15/20,898.03
  6. Step 6: Final answer
    x = 10,552.41

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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.