Home / 21,584.64-29,742.72-14,872.32

Finding the Fourth Proportional to 21,584.64, 29,742.72 and 14,872.32

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Solution

The fourth proportional to 21,584.64, 29,742.72 and 14,872.32 is: 20,493.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,584.64 : 29,742.72 = 14,872.32 : x
  2. Step 2: Convert to fraction form
    21,584.64/29,742.72 = 14,872.32/x
  3. Step 3: Cross multiply
    21,584.64x = 29,742.72 × 14,872.32
  4. Step 4: Simplify right side
    21,584.64x = 442,343,249.51
  5. Step 5: Solve for x
    x = 442,343,249.51/21,584.64
  6. Step 6: Final answer
    x = 20,493.43

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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.