Home / 20,516.45-30,774.69-13,527.65

Finding the Fourth Proportional to 20,516.45, 30,774.69 and 13,527.65

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Solution

The fourth proportional to 20,516.45, 30,774.69 and 13,527.65 is: 20,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.45 : 30,774.69 = 13,527.65 : x
  2. Step 2: Convert to fraction form
    20,516.45/30,774.69 = 13,527.65/x
  3. Step 3: Cross multiply
    20,516.45x = 30,774.69 × 13,527.65
  4. Step 4: Simplify right side
    20,516.45x = 416,309,312.12
  5. Step 5: Solve for x
    x = 416,309,312.12/20,516.45
  6. Step 6: Final answer
    x = 20,291.49

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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.