Home / 20,934.11-31,358.75-10,372.32

Finding the Fourth Proportional to 20,934.11, 31,358.75 and 10,372.32

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Solution

The fourth proportional to 20,934.11, 31,358.75 and 10,372.32 is: 15,537.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.11 : 31,358.75 = 10,372.32 : x
  2. Step 2: Convert to fraction form
    20,934.11/31,358.75 = 10,372.32/x
  3. Step 3: Cross multiply
    20,934.11x = 31,358.75 × 10,372.32
  4. Step 4: Simplify right side
    20,934.11x = 325,262,937.94
  5. Step 5: Solve for x
    x = 325,262,937.94/20,934.11
  6. Step 6: Final answer
    x = 15,537.46

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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.