Home / 21,661.56-32,424.27-13,772.97

Finding the Fourth Proportional to 21,661.56, 32,424.27 and 13,772.97

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Solution

The fourth proportional to 21,661.56, 32,424.27 and 13,772.97 is: 20,616.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661.56 : 32,424.27 = 13,772.97 : x
  2. Step 2: Convert to fraction form
    21,661.56/32,424.27 = 13,772.97/x
  3. Step 3: Cross multiply
    21,661.56x = 32,424.27 × 13,772.97
  4. Step 4: Simplify right side
    21,661.56x = 446,578,497.98
  5. Step 5: Solve for x
    x = 446,578,497.98/21,661.56
  6. Step 6: Final answer
    x = 20,616.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.