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Finding the Fourth Proportional to 43,461.44, 65,190.76 and 13,881.08

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Solution

The fourth proportional to 43,461.44, 65,190.76 and 13,881.08 is: 20,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,461.44 : 65,190.76 = 13,881.08 : x
  2. Step 2: Convert to fraction form
    43,461.44/65,190.76 = 13,881.08/x
  3. Step 3: Cross multiply
    43,461.44x = 65,190.76 × 13,881.08
  4. Step 4: Simplify right side
    43,461.44x = 904,918,154.82
  5. Step 5: Solve for x
    x = 904,918,154.82/43,461.44
  6. Step 6: Final answer
    x = 20,821.17

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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.