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Finding the Fourth Proportional to 30,251.68, 45,361.92 and 13,597.48

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Solution

The fourth proportional to 30,251.68, 45,361.92 and 13,597.48 is: 20,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.68 : 45,361.92 = 13,597.48 : x
  2. Step 2: Convert to fraction form
    30,251.68/45,361.92 = 13,597.48/x
  3. Step 3: Cross multiply
    30,251.68x = 45,361.92 × 13,597.48
  4. Step 4: Simplify right side
    30,251.68x = 616,807,799.96
  5. Step 5: Solve for x
    x = 616,807,799.96/30,251.68
  6. Step 6: Final answer
    x = 20,389.21

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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.