Home / 20,827.23-28,741.13-11,873.89

Finding the Fourth Proportional to 20,827.23, 28,741.13 and 11,873.89

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Solution

The fourth proportional to 20,827.23, 28,741.13 and 11,873.89 is: 16,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.23 : 28,741.13 = 11,873.89 : x
  2. Step 2: Convert to fraction form
    20,827.23/28,741.13 = 11,873.89/x
  3. Step 3: Cross multiply
    20,827.23x = 28,741.13 × 11,873.89
  4. Step 4: Simplify right side
    20,827.23x = 341,269,037.18
  5. Step 5: Solve for x
    x = 341,269,037.18/20,827.23
  6. Step 6: Final answer
    x = 16,385.72

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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.