Home / 25,743.70-38,615.55-8,215.30

Finding the Fourth Proportional to 25,743.70, 38,615.55 and 8,215.30

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Solution

The fourth proportional to 25,743.70, 38,615.55 and 8,215.30 is: 12,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,743.70 : 38,615.55 = 8,215.30 : x
  2. Step 2: Convert to fraction form
    25,743.70/38,615.55 = 8,215.30/x
  3. Step 3: Cross multiply
    25,743.70x = 38,615.55 × 8,215.30
  4. Step 4: Simplify right side
    25,743.70x = 317,238,327.92
  5. Step 5: Solve for x
    x = 317,238,327.92/25,743.70
  6. Step 6: Final answer
    x = 12,322.95

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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.