Home / 30,419.70-45,629.01-15,619.92

Finding the Fourth Proportional to 30,419.70, 45,629.01 and 15,619.92

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Solution

The fourth proportional to 30,419.70, 45,629.01 and 15,619.92 is: 23,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,419.70 : 45,629.01 = 15,619.92 : x
  2. Step 2: Convert to fraction form
    30,419.70/45,629.01 = 15,619.92/x
  3. Step 3: Cross multiply
    30,419.70x = 45,629.01 × 15,619.92
  4. Step 4: Simplify right side
    30,419.70x = 712,721,485.88
  5. Step 5: Solve for x
    x = 712,721,485.88/30,419.70
  6. Step 6: Final answer
    x = 23,429.60

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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.