Home / 18,800.17-28,200.35-5,652.45

Finding the Fourth Proportional to 18,800.17, 28,200.35 and 5,652.45

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Solution

The fourth proportional to 18,800.17, 28,200.35 and 5,652.45 is: 8,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.17 : 28,200.35 = 5,652.45 : x
  2. Step 2: Convert to fraction form
    18,800.17/28,200.35 = 5,652.45/x
  3. Step 3: Cross multiply
    18,800.17x = 28,200.35 × 5,652.45
  4. Step 4: Simplify right side
    18,800.17x = 159,401,082.49
  5. Step 5: Solve for x
    x = 159,401,082.49/18,800.17
  6. Step 6: Final answer
    x = 8,478.71

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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.