Home / 21,291.35-29,382.08-12,344.04

Finding the Fourth Proportional to 21,291.35, 29,382.08 and 12,344.04

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Solution

The fourth proportional to 21,291.35, 29,382.08 and 12,344.04 is: 17,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291.35 : 29,382.08 = 12,344.04 : x
  2. Step 2: Convert to fraction form
    21,291.35/29,382.08 = 12,344.04/x
  3. Step 3: Cross multiply
    21,291.35x = 29,382.08 × 12,344.04
  4. Step 4: Simplify right side
    21,291.35x = 362,693,509.08
  5. Step 5: Solve for x
    x = 362,693,509.08/21,291.35
  6. Step 6: Final answer
    x = 17,034.79

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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.