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Finding the Fourth Proportional to 29,011.78, 43,518.29 and 9,290.29

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Solution

The fourth proportional to 29,011.78, 43,518.29 and 9,290.29 is: 13,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,011.78 : 43,518.29 = 9,290.29 : x
  2. Step 2: Convert to fraction form
    29,011.78/43,518.29 = 9,290.29/x
  3. Step 3: Cross multiply
    29,011.78x = 43,518.29 × 9,290.29
  4. Step 4: Simplify right side
    29,011.78x = 404,297,534.40
  5. Step 5: Solve for x
    x = 404,297,534.40/29,011.78
  6. Step 6: Final answer
    x = 13,935.63

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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.