Home / 21,046.68-29,048.16-12,549.33

Finding the Fourth Proportional to 21,046.68, 29,048.16 and 12,549.33

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Solution

The fourth proportional to 21,046.68, 29,048.16 and 12,549.33 is: 17,320.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.68 : 29,048.16 = 12,549.33 : x
  2. Step 2: Convert to fraction form
    21,046.68/29,048.16 = 12,549.33/x
  3. Step 3: Cross multiply
    21,046.68x = 29,048.16 × 12,549.33
  4. Step 4: Simplify right side
    21,046.68x = 364,534,945.73
  5. Step 5: Solve for x
    x = 364,534,945.73/21,046.68
  6. Step 6: Final answer
    x = 17,320.31

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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.