Home / 21,297.09-31,943.07-5,715.93

Finding the Fourth Proportional to 21,297.09, 31,943.07 and 5,715.93

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Solution

The fourth proportional to 21,297.09, 31,943.07 and 5,715.93 is: 8,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.09 : 31,943.07 = 5,715.93 : x
  2. Step 2: Convert to fraction form
    21,297.09/31,943.07 = 5,715.93/x
  3. Step 3: Cross multiply
    21,297.09x = 31,943.07 × 5,715.93
  4. Step 4: Simplify right side
    21,297.09x = 182,584,352.11
  5. Step 5: Solve for x
    x = 182,584,352.11/21,297.09
  6. Step 6: Final answer
    x = 8,573.21

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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.