Home / 30,188.09-45,300.57-19,079.48

Finding the Fourth Proportional to 30,188.09, 45,300.57 and 19,079.48

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Solution

The fourth proportional to 30,188.09, 45,300.57 and 19,079.48 is: 28,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.09 : 45,300.57 = 19,079.48 : x
  2. Step 2: Convert to fraction form
    30,188.09/45,300.57 = 19,079.48/x
  3. Step 3: Cross multiply
    30,188.09x = 45,300.57 × 19,079.48
  4. Step 4: Simplify right side
    30,188.09x = 864,311,361.01
  5. Step 5: Solve for x
    x = 864,311,361.01/30,188.09
  6. Step 6: Final answer
    x = 28,630.87

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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.