Home / 21,085.04-29,097.70-11,653.68

Finding the Fourth Proportional to 21,085.04, 29,097.70 and 11,653.68

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Solution

The fourth proportional to 21,085.04, 29,097.70 and 11,653.68 is: 16,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085.04 : 29,097.70 = 11,653.68 : x
  2. Step 2: Convert to fraction form
    21,085.04/29,097.70 = 11,653.68/x
  3. Step 3: Cross multiply
    21,085.04x = 29,097.70 × 11,653.68
  4. Step 4: Simplify right side
    21,085.04x = 339,095,284.54
  5. Step 5: Solve for x
    x = 339,095,284.54/21,085.04
  6. Step 6: Final answer
    x = 16,082.27

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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.