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Finding the Fourth Proportional to 30,230.70, 45,361.80 and 14,453.52

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Solution

The fourth proportional to 30,230.70, 45,361.80 and 14,453.52 is: 21,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.70 : 45,361.80 = 14,453.52 : x
  2. Step 2: Convert to fraction form
    30,230.70/45,361.80 = 14,453.52/x
  3. Step 3: Cross multiply
    30,230.70x = 45,361.80 × 14,453.52
  4. Step 4: Simplify right side
    30,230.70x = 655,637,683.54
  5. Step 5: Solve for x
    x = 655,637,683.54/30,230.70
  6. Step 6: Final answer
    x = 21,687.81

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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.