Home / 25,479.69-38,211.06-12,145.23

Finding the Fourth Proportional to 25,479.69, 38,211.06 and 12,145.23

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Solution

The fourth proportional to 25,479.69, 38,211.06 and 12,145.23 is: 18,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479.69 : 38,211.06 = 12,145.23 : x
  2. Step 2: Convert to fraction form
    25,479.69/38,211.06 = 12,145.23/x
  3. Step 3: Cross multiply
    25,479.69x = 38,211.06 × 12,145.23
  4. Step 4: Simplify right side
    25,479.69x = 464,082,112.24
  5. Step 5: Solve for x
    x = 464,082,112.24/25,479.69
  6. Step 6: Final answer
    x = 18,213.81

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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.