Home / 21,085.52-29,098.14-11,525.42

Finding the Fourth Proportional to 21,085.52, 29,098.14 and 11,525.42

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Solution

The fourth proportional to 21,085.52, 29,098.14 and 11,525.42 is: 15,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085.52 : 29,098.14 = 11,525.42 : x
  2. Step 2: Convert to fraction form
    21,085.52/29,098.14 = 11,525.42/x
  3. Step 3: Cross multiply
    21,085.52x = 29,098.14 × 11,525.42
  4. Step 4: Simplify right side
    21,085.52x = 335,368,314.24
  5. Step 5: Solve for x
    x = 335,368,314.24/21,085.52
  6. Step 6: Final answer
    x = 15,905.15

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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.