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Finding the Fourth Proportional to 21,892.20, 32,838.30 and 9,410.10

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Solution

The fourth proportional to 21,892.20, 32,838.30 and 9,410.10 is: 14,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.20 : 32,838.30 = 9,410.10 : x
  2. Step 2: Convert to fraction form
    21,892.20/32,838.30 = 9,410.10/x
  3. Step 3: Cross multiply
    21,892.20x = 32,838.30 × 9,410.10
  4. Step 4: Simplify right side
    21,892.20x = 309,011,686.83
  5. Step 5: Solve for x
    x = 309,011,686.83/21,892.20
  6. Step 6: Final answer
    x = 14,115.15

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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.