Home / 28,651.37-42,993.79-12,010.12

Finding the Fourth Proportional to 28,651.37, 42,993.79 and 12,010.12

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Solution

The fourth proportional to 28,651.37, 42,993.79 and 12,010.12 is: 18,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.37 : 42,993.79 = 12,010.12 : x
  2. Step 2: Convert to fraction form
    28,651.37/42,993.79 = 12,010.12/x
  3. Step 3: Cross multiply
    28,651.37x = 42,993.79 × 12,010.12
  4. Step 4: Simplify right side
    28,651.37x = 516,360,681.49
  5. Step 5: Solve for x
    x = 516,360,681.49/28,651.37
  6. Step 6: Final answer
    x = 18,022.20

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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.