Home / 20,483.76-30,724.56-10,092

Finding the Fourth Proportional to 20,483.76, 30,724.56 and 10,092

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Solution

The fourth proportional to 20,483.76, 30,724.56 and 10,092 is: 15,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.76 : 30,724.56 = 10,092 : x
  2. Step 2: Convert to fraction form
    20,483.76/30,724.56 = 10,092/x
  3. Step 3: Cross multiply
    20,483.76x = 30,724.56 × 10,092
  4. Step 4: Simplify right side
    20,483.76x = 310,072,259.52
  5. Step 5: Solve for x
    x = 310,072,259.52/20,483.76
  6. Step 6: Final answer
    x = 15,137.47

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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.