Home / 21,544.16-29,735.22-13,979.88

Finding the Fourth Proportional to 21,544.16, 29,735.22 and 13,979.88

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Solution

The fourth proportional to 21,544.16, 29,735.22 and 13,979.88 is: 19,295.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.16 : 29,735.22 = 13,979.88 : x
  2. Step 2: Convert to fraction form
    21,544.16/29,735.22 = 13,979.88/x
  3. Step 3: Cross multiply
    21,544.16x = 29,735.22 × 13,979.88
  4. Step 4: Simplify right side
    21,544.16x = 415,694,807.37
  5. Step 5: Solve for x
    x = 415,694,807.37/21,544.16
  6. Step 6: Final answer
    x = 19,295.01

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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.