Home / 20,401.47-30,583.75-7,250.77

Finding the Fourth Proportional to 20,401.47, 30,583.75 and 7,250.77

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Solution

The fourth proportional to 20,401.47, 30,583.75 and 7,250.77 is: 10,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.47 : 30,583.75 = 7,250.77 : x
  2. Step 2: Convert to fraction form
    20,401.47/30,583.75 = 7,250.77/x
  3. Step 3: Cross multiply
    20,401.47x = 30,583.75 × 7,250.77
  4. Step 4: Simplify right side
    20,401.47x = 221,755,736.99
  5. Step 5: Solve for x
    x = 221,755,736.99/20,401.47
  6. Step 6: Final answer
    x = 10,869.60

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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.