Home / 23,140.05-31,933.11-12,529.44

Finding the Fourth Proportional to 23,140.05, 31,933.11 and 12,529.44

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Solution

The fourth proportional to 23,140.05, 31,933.11 and 12,529.44 is: 17,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.05 : 31,933.11 = 12,529.44 : x
  2. Step 2: Convert to fraction form
    23,140.05/31,933.11 = 12,529.44/x
  3. Step 3: Cross multiply
    23,140.05x = 31,933.11 × 12,529.44
  4. Step 4: Simplify right side
    23,140.05x = 400,103,985.76
  5. Step 5: Solve for x
    x = 400,103,985.76/23,140.05
  6. Step 6: Final answer
    x = 17,290.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.