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Finding the Fourth Proportional to 34,331.60, 51,583.80 and 21,857.60

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Solution

The fourth proportional to 34,331.60, 51,583.80 and 21,857.60 is: 32,841.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,331.60 : 51,583.80 = 21,857.60 : x
  2. Step 2: Convert to fraction form
    34,331.60/51,583.80 = 21,857.60/x
  3. Step 3: Cross multiply
    34,331.60x = 51,583.80 × 21,857.60
  4. Step 4: Simplify right side
    34,331.60x = 1,127,498,066.88
  5. Step 5: Solve for x
    x = 1,127,498,066.88/34,331.60
  6. Step 6: Final answer
    x = 32,841.41

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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.