Home / 47,678.20-71,495.70-18,086.20

Finding the Fourth Proportional to 47,678.20, 71,495.70 and 18,086.20

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Solution

The fourth proportional to 47,678.20, 71,495.70 and 18,086.20 is: 27,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,678.20 : 71,495.70 = 18,086.20 : x
  2. Step 2: Convert to fraction form
    47,678.20/71,495.70 = 18,086.20/x
  3. Step 3: Cross multiply
    47,678.20x = 71,495.70 × 18,086.20
  4. Step 4: Simplify right side
    47,678.20x = 1,293,085,529.34
  5. Step 5: Solve for x
    x = 1,293,085,529.34/47,678.20
  6. Step 6: Final answer
    x = 27,121.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.