Home / 25,639.44-38,459.28-8,109.36

Finding the Fourth Proportional to 25,639.44, 38,459.28 and 8,109.36

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Solution

The fourth proportional to 25,639.44, 38,459.28 and 8,109.36 is: 12,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,639.44 : 38,459.28 = 8,109.36 : x
  2. Step 2: Convert to fraction form
    25,639.44/38,459.28 = 8,109.36/x
  3. Step 3: Cross multiply
    25,639.44x = 38,459.28 × 8,109.36
  4. Step 4: Simplify right side
    25,639.44x = 311,880,146.86
  5. Step 5: Solve for x
    x = 311,880,146.86/25,639.44
  6. Step 6: Final answer
    x = 12,164.08

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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.