Home / 20,634.56-30,947.74-10,100.06

Finding the Fourth Proportional to 20,634.56, 30,947.74 and 10,100.06

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Solution

The fourth proportional to 20,634.56, 30,947.74 and 10,100.06 is: 15,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.56 : 30,947.74 = 10,100.06 : x
  2. Step 2: Convert to fraction form
    20,634.56/30,947.74 = 10,100.06/x
  3. Step 3: Cross multiply
    20,634.56x = 30,947.74 × 10,100.06
  4. Step 4: Simplify right side
    20,634.56x = 312,573,825.63
  5. Step 5: Solve for x
    x = 312,573,825.63/20,634.56
  6. Step 6: Final answer
    x = 15,148.07

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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.