Home / 28,143.09-38,861.30-18,093.83

Finding the Fourth Proportional to 28,143.09, 38,861.30 and 18,093.83

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Solution

The fourth proportional to 28,143.09, 38,861.30 and 18,093.83 is: 24,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143.09 : 38,861.30 = 18,093.83 : x
  2. Step 2: Convert to fraction form
    28,143.09/38,861.30 = 18,093.83/x
  3. Step 3: Cross multiply
    28,143.09x = 38,861.30 × 18,093.83
  4. Step 4: Simplify right side
    28,143.09x = 703,149,606.71
  5. Step 5: Solve for x
    x = 703,149,606.71/28,143.09
  6. Step 6: Final answer
    x = 24,984.80

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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.