Home / 21,262.41-29,329.22-13,298.09

Finding the Fourth Proportional to 21,262.41, 29,329.22 and 13,298.09

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Solution

The fourth proportional to 21,262.41, 29,329.22 and 13,298.09 is: 18,343.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,262.41 : 29,329.22 = 13,298.09 : x
  2. Step 2: Convert to fraction form
    21,262.41/29,329.22 = 13,298.09/x
  3. Step 3: Cross multiply
    21,262.41x = 29,329.22 × 13,298.09
  4. Step 4: Simplify right side
    21,262.41x = 390,022,493.79
  5. Step 5: Solve for x
    x = 390,022,493.79/21,262.41
  6. Step 6: Final answer
    x = 18,343.29

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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.