Home / 28,608.36-42,924.34-12,589.68

Finding the Fourth Proportional to 28,608.36, 42,924.34 and 12,589.68

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Solution

The fourth proportional to 28,608.36, 42,924.34 and 12,589.68 is: 18,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.36 : 42,924.34 = 12,589.68 : x
  2. Step 2: Convert to fraction form
    28,608.36/42,924.34 = 12,589.68/x
  3. Step 3: Cross multiply
    28,608.36x = 42,924.34 × 12,589.68
  4. Step 4: Simplify right side
    28,608.36x = 540,403,704.81
  5. Step 5: Solve for x
    x = 540,403,704.81/28,608.36
  6. Step 6: Final answer
    x = 18,889.71

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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.