Home / 21,149.54-29,186.37-12,652.02

Finding the Fourth Proportional to 21,149.54, 29,186.37 and 12,652.02

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Solution

The fourth proportional to 21,149.54, 29,186.37 and 12,652.02 is: 17,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.54 : 29,186.37 = 12,652.02 : x
  2. Step 2: Convert to fraction form
    21,149.54/29,186.37 = 12,652.02/x
  3. Step 3: Cross multiply
    21,149.54x = 29,186.37 × 12,652.02
  4. Step 4: Simplify right side
    21,149.54x = 369,266,610.16
  5. Step 5: Solve for x
    x = 369,266,610.16/21,149.54
  6. Step 6: Final answer
    x = 17,459.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.