Home / 20,250.34-30,360.93-12,443.02

Finding the Fourth Proportional to 20,250.34, 30,360.93 and 12,443.02

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Solution

The fourth proportional to 20,250.34, 30,360.93 and 12,443.02 is: 18,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.34 : 30,360.93 = 12,443.02 : x
  2. Step 2: Convert to fraction form
    20,250.34/30,360.93 = 12,443.02/x
  3. Step 3: Cross multiply
    20,250.34x = 30,360.93 × 12,443.02
  4. Step 4: Simplify right side
    20,250.34x = 377,781,659.21
  5. Step 5: Solve for x
    x = 377,781,659.21/20,250.34
  6. Step 6: Final answer
    x = 18,655.57

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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.