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Finding the Fourth Proportional to 21,763.52, 32,650.90 and 9,277.28

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Solution

The fourth proportional to 21,763.52, 32,650.90 and 9,277.28 is: 13,918.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.52 : 32,650.90 = 9,277.28 : x
  2. Step 2: Convert to fraction form
    21,763.52/32,650.90 = 9,277.28/x
  3. Step 3: Cross multiply
    21,763.52x = 32,650.90 × 9,277.28
  4. Step 4: Simplify right side
    21,763.52x = 302,911,541.55
  5. Step 5: Solve for x
    x = 302,911,541.55/21,763.52
  6. Step 6: Final answer
    x = 13,918.32

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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.