Home / 20,734.47-31,101.54-9,634.98

Finding the Fourth Proportional to 20,734.47, 31,101.54 and 9,634.98

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Solution

The fourth proportional to 20,734.47, 31,101.54 and 9,634.98 is: 14,452.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.47 : 31,101.54 = 9,634.98 : x
  2. Step 2: Convert to fraction form
    20,734.47/31,101.54 = 9,634.98/x
  3. Step 3: Cross multiply
    20,734.47x = 31,101.54 × 9,634.98
  4. Step 4: Simplify right side
    20,734.47x = 299,662,715.87
  5. Step 5: Solve for x
    x = 299,662,715.87/20,734.47
  6. Step 6: Final answer
    x = 14,452.39

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1.5x scale

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.