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Finding the Fourth Proportional to 35,174.80, 48,541.80 and 21,029.20

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Solution

The fourth proportional to 35,174.80, 48,541.80 and 21,029.20 is: 29,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,174.80 : 48,541.80 = 21,029.20 : x
  2. Step 2: Convert to fraction form
    35,174.80/48,541.80 = 21,029.20/x
  3. Step 3: Cross multiply
    35,174.80x = 48,541.80 × 21,029.20
  4. Step 4: Simplify right side
    35,174.80x = 1,020,795,220.56
  5. Step 5: Solve for x
    x = 1,020,795,220.56/35,174.80
  6. Step 6: Final answer
    x = 29,020.64

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1.5x scale

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.