Home / 38,392.78-52,986.34-21,398.58

Finding the Fourth Proportional to 38,392.78, 52,986.34 and 21,398.58

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Solution

The fourth proportional to 38,392.78, 52,986.34 and 21,398.58 is: 29,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,392.78 : 52,986.34 = 21,398.58 : x
  2. Step 2: Convert to fraction form
    38,392.78/52,986.34 = 21,398.58/x
  3. Step 3: Cross multiply
    38,392.78x = 52,986.34 × 21,398.58
  4. Step 4: Simplify right side
    38,392.78x = 1,133,832,183.20
  5. Step 5: Solve for x
    x = 1,133,832,183.20/38,392.78
  6. Step 6: Final answer
    x = 29,532.43

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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.