Home / 31,246.08-43,119.42-16,905.88

Finding the Fourth Proportional to 31,246.08, 43,119.42 and 16,905.88

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Solution

The fourth proportional to 31,246.08, 43,119.42 and 16,905.88 is: 23,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,246.08 : 43,119.42 = 16,905.88 : x
  2. Step 2: Convert to fraction form
    31,246.08/43,119.42 = 16,905.88/x
  3. Step 3: Cross multiply
    31,246.08x = 43,119.42 × 16,905.88
  4. Step 4: Simplify right side
    31,246.08x = 728,971,730.69
  5. Step 5: Solve for x
    x = 728,971,730.69/31,246.08
  6. Step 6: Final answer
    x = 23,330.02

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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.