Home / 21,039.66-29,028.51-12,537.54

Finding the Fourth Proportional to 21,039.66, 29,028.51 and 12,537.54

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Solution

The fourth proportional to 21,039.66, 29,028.51 and 12,537.54 is: 17,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.66 : 29,028.51 = 12,537.54 : x
  2. Step 2: Convert to fraction form
    21,039.66/29,028.51 = 12,537.54/x
  3. Step 3: Cross multiply
    21,039.66x = 29,028.51 × 12,537.54
  4. Step 4: Simplify right side
    21,039.66x = 363,946,105.27
  5. Step 5: Solve for x
    x = 363,946,105.27/21,039.66
  6. Step 6: Final answer
    x = 17,298.10

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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.