Home / 21,664.76-29,895.96-12,589.32

Finding the Fourth Proportional to 21,664.76, 29,895.96 and 12,589.32

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Solution

The fourth proportional to 21,664.76, 29,895.96 and 12,589.32 is: 17,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.76 : 29,895.96 = 12,589.32 : x
  2. Step 2: Convert to fraction form
    21,664.76/29,895.96 = 12,589.32/x
  3. Step 3: Cross multiply
    21,664.76x = 29,895.96 × 12,589.32
  4. Step 4: Simplify right side
    21,664.76x = 376,369,807.15
  5. Step 5: Solve for x
    x = 376,369,807.15/21,664.76
  6. Step 6: Final answer
    x = 17,372.44

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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.