Home / 21,176.64-29,237.22-13,625.82

Finding the Fourth Proportional to 21,176.64, 29,237.22 and 13,625.82

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Solution

The fourth proportional to 21,176.64, 29,237.22 and 13,625.82 is: 18,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.64 : 29,237.22 = 13,625.82 : x
  2. Step 2: Convert to fraction form
    21,176.64/29,237.22 = 13,625.82/x
  3. Step 3: Cross multiply
    21,176.64x = 29,237.22 × 13,625.82
  4. Step 4: Simplify right side
    21,176.64x = 398,381,097.02
  5. Step 5: Solve for x
    x = 398,381,097.02/21,176.64
  6. Step 6: Final answer
    x = 18,812.29

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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.