Home / 29,079.42-43,623.54-12,439.50

Finding the Fourth Proportional to 29,079.42, 43,623.54 and 12,439.50

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Solution

The fourth proportional to 29,079.42, 43,623.54 and 12,439.50 is: 18,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,079.42 : 43,623.54 = 12,439.50 : x
  2. Step 2: Convert to fraction form
    29,079.42/43,623.54 = 12,439.50/x
  3. Step 3: Cross multiply
    29,079.42x = 43,623.54 × 12,439.50
  4. Step 4: Simplify right side
    29,079.42x = 542,655,025.83
  5. Step 5: Solve for x
    x = 542,655,025.83/29,079.42
  6. Step 6: Final answer
    x = 18,661.14

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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.