Home / 21,055.48-29,046.63-12,552.73

Finding the Fourth Proportional to 21,055.48, 29,046.63 and 12,552.73

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Solution

The fourth proportional to 21,055.48, 29,046.63 and 12,552.73 is: 17,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.48 : 29,046.63 = 12,552.73 : x
  2. Step 2: Convert to fraction form
    21,055.48/29,046.63 = 12,552.73/x
  3. Step 3: Cross multiply
    21,055.48x = 29,046.63 × 12,552.73
  4. Step 4: Simplify right side
    21,055.48x = 364,614,503.80
  5. Step 5: Solve for x
    x = 364,614,503.80/21,055.48
  6. Step 6: Final answer
    x = 17,316.85

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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.