Home / 29,099.15-43,612.20-12,439.60

Finding the Fourth Proportional to 29,099.15, 43,612.20 and 12,439.60

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Solution

The fourth proportional to 29,099.15, 43,612.20 and 12,439.60 is: 18,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,099.15 : 43,612.20 = 12,439.60 : x
  2. Step 2: Convert to fraction form
    29,099.15/43,612.20 = 12,439.60/x
  3. Step 3: Cross multiply
    29,099.15x = 43,612.20 × 12,439.60
  4. Step 4: Simplify right side
    29,099.15x = 542,518,301.76
  5. Step 5: Solve for x
    x = 542,518,301.76/29,099.15
  6. Step 6: Final answer
    x = 18,643.79

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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.