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Finding the Fourth Proportional to 29,297.30, 43,938.95 and 12,648.22

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Solution

The fourth proportional to 29,297.30, 43,938.95 and 12,648.22 is: 18,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,297.30 : 43,938.95 = 12,648.22 : x
  2. Step 2: Convert to fraction form
    29,297.30/43,938.95 = 12,648.22/x
  3. Step 3: Cross multiply
    29,297.30x = 43,938.95 × 12,648.22
  4. Step 4: Simplify right side
    29,297.30x = 555,749,333.08
  5. Step 5: Solve for x
    x = 555,749,333.08/29,297.30
  6. Step 6: Final answer
    x = 18,969.31

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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.