Home / 38,181.34-52,690.20-21,188.35

Finding the Fourth Proportional to 38,181.34, 52,690.20 and 21,188.35

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Solution

The fourth proportional to 38,181.34, 52,690.20 and 21,188.35 is: 29,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,181.34 : 52,690.20 = 21,188.35 : x
  2. Step 2: Convert to fraction form
    38,181.34/52,690.20 = 21,188.35/x
  3. Step 3: Cross multiply
    38,181.34x = 52,690.20 × 21,188.35
  4. Step 4: Simplify right side
    38,181.34x = 1,116,418,399.17
  5. Step 5: Solve for x
    x = 1,116,418,399.17/38,181.34
  6. Step 6: Final answer
    x = 29,239.90

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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.