Home / 38,493.36-53,122.32-21,726

Finding the Fourth Proportional to 38,493.36, 53,122.32 and 21,726

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Solution

The fourth proportional to 38,493.36, 53,122.32 and 21,726 is: 29,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,493.36 : 53,122.32 = 21,726 : x
  2. Step 2: Convert to fraction form
    38,493.36/53,122.32 = 21,726/x
  3. Step 3: Cross multiply
    38,493.36x = 53,122.32 × 21,726
  4. Step 4: Simplify right side
    38,493.36x = 1,154,135,524.32
  5. Step 5: Solve for x
    x = 1,154,135,524.32/38,493.36
  6. Step 6: Final answer
    x = 29,982.72

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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.