Home / 28,651.96-42,982.67-12,013.23

Finding the Fourth Proportional to 28,651.96, 42,982.67 and 12,013.23

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Solution

The fourth proportional to 28,651.96, 42,982.67 and 12,013.23 is: 18,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.96 : 42,982.67 = 12,013.23 : x
  2. Step 2: Convert to fraction form
    28,651.96/42,982.67 = 12,013.23/x
  3. Step 3: Cross multiply
    28,651.96x = 42,982.67 × 12,013.23
  4. Step 4: Simplify right side
    28,651.96x = 516,360,700.72
  5. Step 5: Solve for x
    x = 516,360,700.72/28,651.96
  6. Step 6: Final answer
    x = 18,021.83

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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.