Home / 29,075.12-43,620.20-12,199.08

Finding the Fourth Proportional to 29,075.12, 43,620.20 and 12,199.08

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Solution

The fourth proportional to 29,075.12, 43,620.20 and 12,199.08 is: 18,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,075.12 : 43,620.20 = 12,199.08 : x
  2. Step 2: Convert to fraction form
    29,075.12/43,620.20 = 12,199.08/x
  3. Step 3: Cross multiply
    29,075.12x = 43,620.20 × 12,199.08
  4. Step 4: Simplify right side
    29,075.12x = 532,126,176.34
  5. Step 5: Solve for x
    x = 532,126,176.34/29,075.12
  6. Step 6: Final answer
    x = 18,301.77

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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.