Home / 21,574.10-29,765.30-13,073.54

Finding the Fourth Proportional to 21,574.10, 29,765.30 and 13,073.54

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Solution

The fourth proportional to 21,574.10, 29,765.30 and 13,073.54 is: 18,037.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,574.10 : 29,765.30 = 13,073.54 : x
  2. Step 2: Convert to fraction form
    21,574.10/29,765.30 = 13,073.54/x
  3. Step 3: Cross multiply
    21,574.10x = 29,765.30 × 13,073.54
  4. Step 4: Simplify right side
    21,574.10x = 389,137,625.97
  5. Step 5: Solve for x
    x = 389,137,625.97/21,574.10
  6. Step 6: Final answer
    x = 18,037.26

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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.