Home / 25,322.20-38,007.60-12,856.30

Finding the Fourth Proportional to 25,322.20, 38,007.60 and 12,856.30

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Solution

The fourth proportional to 25,322.20, 38,007.60 and 12,856.30 is: 19,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,322.20 : 38,007.60 = 12,856.30 : x
  2. Step 2: Convert to fraction form
    25,322.20/38,007.60 = 12,856.30/x
  3. Step 3: Cross multiply
    25,322.20x = 38,007.60 × 12,856.30
  4. Step 4: Simplify right side
    25,322.20x = 488,637,107.88
  5. Step 5: Solve for x
    x = 488,637,107.88/25,322.20
  6. Step 6: Final answer
    x = 19,296.79

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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.