Home / 20,897.12-28,838.22-11,466.02

Finding the Fourth Proportional to 20,897.12, 28,838.22 and 11,466.02

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Solution

The fourth proportional to 20,897.12, 28,838.22 and 11,466.02 is: 15,823.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.12 : 28,838.22 = 11,466.02 : x
  2. Step 2: Convert to fraction form
    20,897.12/28,838.22 = 11,466.02/x
  3. Step 3: Cross multiply
    20,897.12x = 28,838.22 × 11,466.02
  4. Step 4: Simplify right side
    20,897.12x = 330,659,607.28
  5. Step 5: Solve for x
    x = 330,659,607.28/20,897.12
  6. Step 6: Final answer
    x = 15,823.21

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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.