Home / 45,004.20-67,452.30-18,695.40

Finding the Fourth Proportional to 45,004.20, 67,452.30 and 18,695.40

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Solution

The fourth proportional to 45,004.20, 67,452.30 and 18,695.40 is: 28,020.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,004.20 : 67,452.30 = 18,695.40 : x
  2. Step 2: Convert to fraction form
    45,004.20/67,452.30 = 18,695.40/x
  3. Step 3: Cross multiply
    45,004.20x = 67,452.30 × 18,695.40
  4. Step 4: Simplify right side
    45,004.20x = 1,261,047,729.42
  5. Step 5: Solve for x
    x = 1,261,047,729.42/45,004.20
  6. Step 6: Final answer
    x = 28,020.67

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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.