Home / 20,207.49-30,255.35-10,325.49

Finding the Fourth Proportional to 20,207.49, 30,255.35 and 10,325.49

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Solution

The fourth proportional to 20,207.49, 30,255.35 and 10,325.49 is: 15,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.49 : 30,255.35 = 10,325.49 : x
  2. Step 2: Convert to fraction form
    20,207.49/30,255.35 = 10,325.49/x
  3. Step 3: Cross multiply
    20,207.49x = 30,255.35 × 10,325.49
  4. Step 4: Simplify right side
    20,207.49x = 312,401,262.24
  5. Step 5: Solve for x
    x = 312,401,262.24/20,207.49
  6. Step 6: Final answer
    x = 15,459.68

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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.