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Finding the Fourth Proportional to 30,453.30, 45,619.20 and 26,800.20

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Solution

The fourth proportional to 30,453.30, 45,619.20 and 26,800.20 is: 40,146.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.30 : 45,619.20 = 26,800.20 : x
  2. Step 2: Convert to fraction form
    30,453.30/45,619.20 = 26,800.20/x
  3. Step 3: Cross multiply
    30,453.30x = 45,619.20 × 26,800.20
  4. Step 4: Simplify right side
    30,453.30x = 1,222,603,683.84
  5. Step 5: Solve for x
    x = 1,222,603,683.84/30,453.30
  6. Step 6: Final answer
    x = 40,146.84

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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.