Home / 21,303.44-31,955.18-11,505.02

Finding the Fourth Proportional to 21,303.44, 31,955.18 and 11,505.02

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Solution

The fourth proportional to 21,303.44, 31,955.18 and 11,505.02 is: 17,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.44 : 31,955.18 = 11,505.02 : x
  2. Step 2: Convert to fraction form
    21,303.44/31,955.18 = 11,505.02/x
  3. Step 3: Cross multiply
    21,303.44x = 31,955.18 × 11,505.02
  4. Step 4: Simplify right side
    21,303.44x = 367,644,985.00
  5. Step 5: Solve for x
    x = 367,644,985.00/21,303.44
  6. Step 6: Final answer
    x = 17,257.54

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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.