Home / 30,453.21-45,615-17,298.81

Finding the Fourth Proportional to 30,453.21, 45,615 and 17,298.81

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Solution

The fourth proportional to 30,453.21, 45,615 and 17,298.81 is: 25,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.21 : 45,615 = 17,298.81 : x
  2. Step 2: Convert to fraction form
    30,453.21/45,615 = 17,298.81/x
  3. Step 3: Cross multiply
    30,453.21x = 45,615 × 17,298.81
  4. Step 4: Simplify right side
    30,453.21x = 789,085,218.15
  5. Step 5: Solve for x
    x = 789,085,218.15/30,453.21
  6. Step 6: Final answer
    x = 25,911.40

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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.