Home / 29,178.12-43,763.53-8,119.74

Finding the Fourth Proportional to 29,178.12, 43,763.53 and 8,119.74

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Solution

The fourth proportional to 29,178.12, 43,763.53 and 8,119.74 is: 12,178.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,178.12 : 43,763.53 = 8,119.74 : x
  2. Step 2: Convert to fraction form
    29,178.12/43,763.53 = 8,119.74/x
  3. Step 3: Cross multiply
    29,178.12x = 43,763.53 × 8,119.74
  4. Step 4: Simplify right side
    29,178.12x = 355,348,485.08
  5. Step 5: Solve for x
    x = 355,348,485.08/29,178.12
  6. Step 6: Final answer
    x = 12,178.59

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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.