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Finding the Fourth Proportional to 30,247.74, 41,739.03 and 28,018.62

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Solution

The fourth proportional to 30,247.74, 41,739.03 and 28,018.62 is: 38,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.74 : 41,739.03 = 28,018.62 : x
  2. Step 2: Convert to fraction form
    30,247.74/41,739.03 = 28,018.62/x
  3. Step 3: Cross multiply
    30,247.74x = 41,739.03 × 28,018.62
  4. Step 4: Simplify right side
    30,247.74x = 1,169,470,020.74
  5. Step 5: Solve for x
    x = 1,169,470,020.74/30,247.74
  6. Step 6: Final answer
    x = 38,663.05

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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.