Home / 21,382.53-29,507.25-11,951.07

Finding the Fourth Proportional to 21,382.53, 29,507.25 and 11,951.07

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Solution

The fourth proportional to 21,382.53, 29,507.25 and 11,951.07 is: 16,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.53 : 29,507.25 = 11,951.07 : x
  2. Step 2: Convert to fraction form
    21,382.53/29,507.25 = 11,951.07/x
  3. Step 3: Cross multiply
    21,382.53x = 29,507.25 × 11,951.07
  4. Step 4: Simplify right side
    21,382.53x = 352,643,210.26
  5. Step 5: Solve for x
    x = 352,643,210.26/21,382.53
  6. Step 6: Final answer
    x = 16,492.12

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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.