Home / 21,085.52-29,097.90-11,654.08

Finding the Fourth Proportional to 21,085.52, 29,097.90 and 11,654.08

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Solution

The fourth proportional to 21,085.52, 29,097.90 and 11,654.08 is: 16,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085.52 : 29,097.90 = 11,654.08 : x
  2. Step 2: Convert to fraction form
    21,085.52/29,097.90 = 11,654.08/x
  3. Step 3: Cross multiply
    21,085.52x = 29,097.90 × 11,654.08
  4. Step 4: Simplify right side
    21,085.52x = 339,109,181.69
  5. Step 5: Solve for x
    x = 339,109,181.69/21,085.52
  6. Step 6: Final answer
    x = 16,082.57

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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.