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Finding the Fourth Proportional to 44,346.60, 66,518.04 and 20,646

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Solution

The fourth proportional to 44,346.60, 66,518.04 and 20,646 is: 30,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,346.60 : 66,518.04 = 20,646 : x
  2. Step 2: Convert to fraction form
    44,346.60/66,518.04 = 20,646/x
  3. Step 3: Cross multiply
    44,346.60x = 66,518.04 × 20,646
  4. Step 4: Simplify right side
    44,346.60x = 1,373,331,453.84
  5. Step 5: Solve for x
    x = 1,373,331,453.84/44,346.60
  6. Step 6: Final answer
    x = 30,968.13

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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.