Home / 25,115.09-37,679.58-20,423.50

Finding the Fourth Proportional to 25,115.09, 37,679.58 and 20,423.50

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Solution

The fourth proportional to 25,115.09, 37,679.58 and 20,423.50 is: 30,640.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.09 : 37,679.58 = 20,423.50 : x
  2. Step 2: Convert to fraction form
    25,115.09/37,679.58 = 20,423.50/x
  3. Step 3: Cross multiply
    25,115.09x = 37,679.58 × 20,423.50
  4. Step 4: Simplify right side
    25,115.09x = 769,548,807.93
  5. Step 5: Solve for x
    x = 769,548,807.93/25,115.09
  6. Step 6: Final answer
    x = 30,640.90

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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.