Home / 38,309.41-52,869.36-21,317.44

Finding the Fourth Proportional to 38,309.41, 52,869.36 and 21,317.44

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Solution

The fourth proportional to 38,309.41, 52,869.36 and 21,317.44 is: 29,419.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,309.41 : 52,869.36 = 21,317.44 : x
  2. Step 2: Convert to fraction form
    38,309.41/52,869.36 = 21,317.44/x
  3. Step 3: Cross multiply
    38,309.41x = 52,869.36 × 21,317.44
  4. Step 4: Simplify right side
    38,309.41x = 1,127,039,410.97
  5. Step 5: Solve for x
    x = 1,127,039,410.97/38,309.41
  6. Step 6: Final answer
    x = 29,419.39

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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.