Home / 30,213.62-41,709.94-18,889.40

Finding the Fourth Proportional to 30,213.62, 41,709.94 and 18,889.40

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Solution

The fourth proportional to 30,213.62, 41,709.94 and 18,889.40 is: 26,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.62 : 41,709.94 = 18,889.40 : x
  2. Step 2: Convert to fraction form
    30,213.62/41,709.94 = 18,889.40/x
  3. Step 3: Cross multiply
    30,213.62x = 41,709.94 × 18,889.40
  4. Step 4: Simplify right side
    30,213.62x = 787,875,740.64
  5. Step 5: Solve for x
    x = 787,875,740.64/30,213.62
  6. Step 6: Final answer
    x = 26,076.84

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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.