Home / 21,265.41-29,333.36-13,301.09

Finding the Fourth Proportional to 21,265.41, 29,333.36 and 13,301.09

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Solution

The fourth proportional to 21,265.41, 29,333.36 and 13,301.09 is: 18,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.41 : 29,333.36 = 13,301.09 : x
  2. Step 2: Convert to fraction form
    21,265.41/29,333.36 = 13,301.09/x
  3. Step 3: Cross multiply
    21,265.41x = 29,333.36 × 13,301.09
  4. Step 4: Simplify right side
    21,265.41x = 390,165,448.19
  5. Step 5: Solve for x
    x = 390,165,448.19/21,265.41
  6. Step 6: Final answer
    x = 18,347.42

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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.