Home / 21,085.29-29,098.04-11,653.92

Finding the Fourth Proportional to 21,085.29, 29,098.04 and 11,653.92

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Solution

The fourth proportional to 21,085.29, 29,098.04 and 11,653.92 is: 16,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085.29 : 29,098.04 = 11,653.92 : x
  2. Step 2: Convert to fraction form
    21,085.29/29,098.04 = 11,653.92/x
  3. Step 3: Cross multiply
    21,085.29x = 29,098.04 × 11,653.92
  4. Step 4: Simplify right side
    21,085.29x = 339,106,172.05
  5. Step 5: Solve for x
    x = 339,106,172.05/21,085.29
  6. Step 6: Final answer
    x = 16,082.59

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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.