Home / 25,683.75-38,525.63-7,215.75

Finding the Fourth Proportional to 25,683.75, 38,525.63 and 7,215.75

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Solution

The fourth proportional to 25,683.75, 38,525.63 and 7,215.75 is: 10,823.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,683.75 : 38,525.63 = 7,215.75 : x
  2. Step 2: Convert to fraction form
    25,683.75/38,525.63 = 7,215.75/x
  3. Step 3: Cross multiply
    25,683.75x = 38,525.63 × 7,215.75
  4. Step 4: Simplify right side
    25,683.75x = 277,991,278.59
  5. Step 5: Solve for x
    x = 277,991,278.59/25,683.75
  6. Step 6: Final answer
    x = 10,823.63

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Similar ratio
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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.