Home / 30,190.20-45,314.10-25,812.60

Finding the Fourth Proportional to 30,190.20, 45,314.10 and 25,812.60

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Solution

The fourth proportional to 30,190.20, 45,314.10 and 25,812.60 is: 38,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.20 : 45,314.10 = 25,812.60 : x
  2. Step 2: Convert to fraction form
    30,190.20/45,314.10 = 25,812.60/x
  3. Step 3: Cross multiply
    30,190.20x = 45,314.10 × 25,812.60
  4. Step 4: Simplify right side
    30,190.20x = 1,169,674,737.66
  5. Step 5: Solve for x
    x = 1,169,674,737.66/30,190.20
  6. Step 6: Final answer
    x = 38,743.52

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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.