Home / 31,861.58-43,952.40-19,108.62

Finding the Fourth Proportional to 31,861.58, 43,952.40 and 19,108.62

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Solution

The fourth proportional to 31,861.58, 43,952.40 and 19,108.62 is: 26,359.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,861.58 : 43,952.40 = 19,108.62 : x
  2. Step 2: Convert to fraction form
    31,861.58/43,952.40 = 19,108.62/x
  3. Step 3: Cross multiply
    31,861.58x = 43,952.40 × 19,108.62
  4. Step 4: Simplify right side
    31,861.58x = 839,869,709.69
  5. Step 5: Solve for x
    x = 839,869,709.69/31,861.58
  6. Step 6: Final answer
    x = 26,359.95

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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.