Home / 21,583.08-29,785.32-11,892.06

Finding the Fourth Proportional to 21,583.08, 29,785.32 and 11,892.06

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Solution

The fourth proportional to 21,583.08, 29,785.32 and 11,892.06 is: 16,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583.08 : 29,785.32 = 11,892.06 : x
  2. Step 2: Convert to fraction form
    21,583.08/29,785.32 = 11,892.06/x
  3. Step 3: Cross multiply
    21,583.08x = 29,785.32 × 11,892.06
  4. Step 4: Simplify right side
    21,583.08x = 354,208,812.56
  5. Step 5: Solve for x
    x = 354,208,812.56/21,583.08
  6. Step 6: Final answer
    x = 16,411.41

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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.