Home / 20,082.59-30,121.60-5,292.67

Finding the Fourth Proportional to 20,082.59, 30,121.60 and 5,292.67

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Solution

The fourth proportional to 20,082.59, 30,121.60 and 5,292.67 is: 7,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.59 : 30,121.60 = 5,292.67 : x
  2. Step 2: Convert to fraction form
    20,082.59/30,121.60 = 5,292.67/x
  3. Step 3: Cross multiply
    20,082.59x = 30,121.60 × 5,292.67
  4. Step 4: Simplify right side
    20,082.59x = 159,423,688.67
  5. Step 5: Solve for x
    x = 159,423,688.67/20,082.59
  6. Step 6: Final answer
    x = 7,938.40

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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.