Home / 38,388.33-52,968.88-21,392.15

Finding the Fourth Proportional to 38,388.33, 52,968.88 and 21,392.15

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Solution

The fourth proportional to 38,388.33, 52,968.88 and 21,392.15 is: 29,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,388.33 : 52,968.88 = 21,392.15 : x
  2. Step 2: Convert to fraction form
    38,388.33/52,968.88 = 21,392.15/x
  3. Step 3: Cross multiply
    38,388.33x = 52,968.88 × 21,392.15
  4. Step 4: Simplify right side
    38,388.33x = 1,133,118,226.29
  5. Step 5: Solve for x
    x = 1,133,118,226.29/38,388.33
  6. Step 6: Final answer
    x = 29,517.26

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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.