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Finding the Fourth Proportional to 21,963.60, 32,929.20 and 9,473.40

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Solution

The fourth proportional to 21,963.60, 32,929.20 and 9,473.40 is: 14,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.60 : 32,929.20 = 9,473.40 : x
  2. Step 2: Convert to fraction form
    21,963.60/32,929.20 = 9,473.40/x
  3. Step 3: Cross multiply
    21,963.60x = 32,929.20 × 9,473.40
  4. Step 4: Simplify right side
    21,963.60x = 311,951,483.28
  5. Step 5: Solve for x
    x = 311,951,483.28/21,963.60
  6. Step 6: Final answer
    x = 14,203.11

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1.5x scale

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.