Home / 21,844.59-32,782.03-9,999.81

Finding the Fourth Proportional to 21,844.59, 32,782.03 and 9,999.81

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Solution

The fourth proportional to 21,844.59, 32,782.03 and 9,999.81 is: 15,006.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,844.59 : 32,782.03 = 9,999.81 : x
  2. Step 2: Convert to fraction form
    21,844.59/32,782.03 = 9,999.81/x
  3. Step 3: Cross multiply
    21,844.59x = 32,782.03 × 9,999.81
  4. Step 4: Simplify right side
    21,844.59x = 327,814,071.41
  5. Step 5: Solve for x
    x = 327,814,071.41/21,844.59
  6. Step 6: Final answer
    x = 15,006.65

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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.