Home / 21,325.07-31,971.09-14,293.82

Finding the Fourth Proportional to 21,325.07, 31,971.09 and 14,293.82

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Solution

The fourth proportional to 21,325.07, 31,971.09 and 14,293.82 is: 21,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.07 : 31,971.09 = 14,293.82 : x
  2. Step 2: Convert to fraction form
    21,325.07/31,971.09 = 14,293.82/x
  3. Step 3: Cross multiply
    21,325.07x = 31,971.09 × 14,293.82
  4. Step 4: Simplify right side
    21,325.07x = 456,989,005.66
  5. Step 5: Solve for x
    x = 456,989,005.66/21,325.07
  6. Step 6: Final answer
    x = 21,429.66

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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.