Home / 25,478.51-38,220.39-6,758.57

Finding the Fourth Proportional to 25,478.51, 38,220.39 and 6,758.57

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Solution

The fourth proportional to 25,478.51, 38,220.39 and 6,758.57 is: 10,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.51 : 38,220.39 = 6,758.57 : x
  2. Step 2: Convert to fraction form
    25,478.51/38,220.39 = 6,758.57/x
  3. Step 3: Cross multiply
    25,478.51x = 38,220.39 × 6,758.57
  4. Step 4: Simplify right side
    25,478.51x = 258,315,181.92
  5. Step 5: Solve for x
    x = 258,315,181.92/25,478.51
  6. Step 6: Final answer
    x = 10,138.55

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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.