Home / 30,260.56-45,372.33-12,485.71

Finding the Fourth Proportional to 30,260.56, 45,372.33 and 12,485.71

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Solution

The fourth proportional to 30,260.56, 45,372.33 and 12,485.71 is: 18,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.56 : 45,372.33 = 12,485.71 : x
  2. Step 2: Convert to fraction form
    30,260.56/45,372.33 = 12,485.71/x
  3. Step 3: Cross multiply
    30,260.56x = 45,372.33 × 12,485.71
  4. Step 4: Simplify right side
    30,260.56x = 566,505,754.40
  5. Step 5: Solve for x
    x = 566,505,754.40/30,260.56
  6. Step 6: Final answer
    x = 18,720.93

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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.