Home / 38,388.90-52,975.98-21,621.90

Finding the Fourth Proportional to 38,388.90, 52,975.98 and 21,621.90

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Solution

The fourth proportional to 38,388.90, 52,975.98 and 21,621.90 is: 29,837.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,388.90 : 52,975.98 = 21,621.90 : x
  2. Step 2: Convert to fraction form
    38,388.90/52,975.98 = 21,621.90/x
  3. Step 3: Cross multiply
    38,388.90x = 52,975.98 × 21,621.90
  4. Step 4: Simplify right side
    38,388.90x = 1,145,441,341.96
  5. Step 5: Solve for x
    x = 1,145,441,341.96/38,388.90
  6. Step 6: Final answer
    x = 29,837.83

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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.