Home / 25,290.72-37,903.44-12,115.68

Finding the Fourth Proportional to 25,290.72, 37,903.44 and 12,115.68

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Solution

The fourth proportional to 25,290.72, 37,903.44 and 12,115.68 is: 18,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,290.72 : 37,903.44 = 12,115.68 : x
  2. Step 2: Convert to fraction form
    25,290.72/37,903.44 = 12,115.68/x
  3. Step 3: Cross multiply
    25,290.72x = 37,903.44 × 12,115.68
  4. Step 4: Simplify right side
    25,290.72x = 459,225,949.94
  5. Step 5: Solve for x
    x = 459,225,949.94/25,290.72
  6. Step 6: Final answer
    x = 18,157.88

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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.