Home / 21,443.75-29,617.21-14,261.23

Finding the Fourth Proportional to 21,443.75, 29,617.21 and 14,261.23

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Solution

The fourth proportional to 21,443.75, 29,617.21 and 14,261.23 is: 19,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,443.75 : 29,617.21 = 14,261.23 : x
  2. Step 2: Convert to fraction form
    21,443.75/29,617.21 = 14,261.23/x
  3. Step 3: Cross multiply
    21,443.75x = 29,617.21 × 14,261.23
  4. Step 4: Simplify right side
    21,443.75x = 422,377,843.77
  5. Step 5: Solve for x
    x = 422,377,843.77/21,443.75
  6. Step 6: Final answer
    x = 19,697.01

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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.