Home / 21,201.03-29,270.10-13,254.02

Finding the Fourth Proportional to 21,201.03, 29,270.10 and 13,254.02

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Solution

The fourth proportional to 21,201.03, 29,270.10 and 13,254.02 is: 18,298.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.03 : 29,270.10 = 13,254.02 : x
  2. Step 2: Convert to fraction form
    21,201.03/29,270.10 = 13,254.02/x
  3. Step 3: Cross multiply
    21,201.03x = 29,270.10 × 13,254.02
  4. Step 4: Simplify right side
    21,201.03x = 387,946,344.45
  5. Step 5: Solve for x
    x = 387,946,344.45/21,201.03
  6. Step 6: Final answer
    x = 18,298.47

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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.