Home / 21,614.64-29,832.84-13,651.80

Finding the Fourth Proportional to 21,614.64, 29,832.84 and 13,651.80

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Solution

The fourth proportional to 21,614.64, 29,832.84 and 13,651.80 is: 18,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.64 : 29,832.84 = 13,651.80 : x
  2. Step 2: Convert to fraction form
    21,614.64/29,832.84 = 13,651.80/x
  3. Step 3: Cross multiply
    21,614.64x = 29,832.84 × 13,651.80
  4. Step 4: Simplify right side
    21,614.64x = 407,271,965.11
  5. Step 5: Solve for x
    x = 407,271,965.11/21,614.64
  6. Step 6: Final answer
    x = 18,842.41

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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.