Home / 20,654.85-28,497.29-11,699.08

Finding the Fourth Proportional to 20,654.85, 28,497.29 and 11,699.08

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Solution

The fourth proportional to 20,654.85, 28,497.29 and 11,699.08 is: 16,141.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.85 : 28,497.29 = 11,699.08 : x
  2. Step 2: Convert to fraction form
    20,654.85/28,497.29 = 11,699.08/x
  3. Step 3: Cross multiply
    20,654.85x = 28,497.29 × 11,699.08
  4. Step 4: Simplify right side
    20,654.85x = 333,392,204.76
  5. Step 5: Solve for x
    x = 333,392,204.76/20,654.85
  6. Step 6: Final answer
    x = 16,141.11

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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.