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Finding the Fourth Proportional to 43,913, 60,583.40 and 28,814

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Solution

The fourth proportional to 43,913, 60,583.40 and 28,814 is: 39,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,913 : 60,583.40 = 28,814 : x
  2. Step 2: Convert to fraction form
    43,913/60,583.40 = 28,814/x
  3. Step 3: Cross multiply
    43,913x = 60,583.40 × 28,814
  4. Step 4: Simplify right side
    43,913x = 1,745,650,087.60
  5. Step 5: Solve for x
    x = 1,745,650,087.60/43,913
  6. Step 6: Final answer
    x = 39,752.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.