Home / 29,360.87-40,518.11-15,932.12

Finding the Fourth Proportional to 29,360.87, 40,518.11 and 15,932.12

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Solution

The fourth proportional to 29,360.87, 40,518.11 and 15,932.12 is: 21,986.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,360.87 : 40,518.11 = 15,932.12 : x
  2. Step 2: Convert to fraction form
    29,360.87/40,518.11 = 15,932.12/x
  3. Step 3: Cross multiply
    29,360.87x = 40,518.11 × 15,932.12
  4. Step 4: Simplify right side
    29,360.87x = 645,539,588.49
  5. Step 5: Solve for x
    x = 645,539,588.49/29,360.87
  6. Step 6: Final answer
    x = 21,986.39

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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.