Home / 21,329.32-31,999.02-9,642.52

Finding the Fourth Proportional to 21,329.32, 31,999.02 and 9,642.52

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Solution

The fourth proportional to 21,329.32, 31,999.02 and 9,642.52 is: 14,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.32 : 31,999.02 = 9,642.52 : x
  2. Step 2: Convert to fraction form
    21,329.32/31,999.02 = 9,642.52/x
  3. Step 3: Cross multiply
    21,329.32x = 31,999.02 × 9,642.52
  4. Step 4: Simplify right side
    21,329.32x = 308,551,190.33
  5. Step 5: Solve for x
    x = 308,551,190.33/21,329.32
  6. Step 6: Final answer
    x = 14,466.06

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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.