Home / 14,272.16-21,382.32-13,961.12

Finding the Fourth Proportional to 14,272.16, 21,382.32 and 13,961.12

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Solution

The fourth proportional to 14,272.16, 21,382.32 and 13,961.12 is: 20,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.16 : 21,382.32 = 13,961.12 : x
  2. Step 2: Convert to fraction form
    14,272.16/21,382.32 = 13,961.12/x
  3. Step 3: Cross multiply
    14,272.16x = 21,382.32 × 13,961.12
  4. Step 4: Simplify right side
    14,272.16x = 298,521,135.40
  5. Step 5: Solve for x
    x = 298,521,135.40/14,272.16
  6. Step 6: Final answer
    x = 20,916.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.