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Finding the Fourth Proportional to 44,004.60, 66,006.90 and 21,821.40

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Solution

The fourth proportional to 44,004.60, 66,006.90 and 21,821.40 is: 32,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,004.60 : 66,006.90 = 21,821.40 : x
  2. Step 2: Convert to fraction form
    44,004.60/66,006.90 = 21,821.40/x
  3. Step 3: Cross multiply
    44,004.60x = 66,006.90 × 21,821.40
  4. Step 4: Simplify right side
    44,004.60x = 1,440,362,967.66
  5. Step 5: Solve for x
    x = 1,440,362,967.66/44,004.60
  6. Step 6: Final answer
    x = 32,732.10

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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.