Home / 38,181.34-52,693.13-21,188.79

Finding the Fourth Proportional to 38,181.34, 52,693.13 and 21,188.79

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Solution

The fourth proportional to 38,181.34, 52,693.13 and 21,188.79 is: 29,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,181.34 : 52,693.13 = 21,188.79 : x
  2. Step 2: Convert to fraction form
    38,181.34/52,693.13 = 21,188.79/x
  3. Step 3: Cross multiply
    38,181.34x = 52,693.13 × 21,188.79
  4. Step 4: Simplify right side
    38,181.34x = 1,116,503,584.90
  5. Step 5: Solve for x
    x = 1,116,503,584.90/38,181.34
  6. Step 6: Final answer
    x = 29,242.13

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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.