Home / 25,578.40-35,295.60-18,867.68

Finding the Fourth Proportional to 25,578.40, 35,295.60 and 18,867.68

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Solution

The fourth proportional to 25,578.40, 35,295.60 and 18,867.68 is: 26,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,578.40 : 35,295.60 = 18,867.68 : x
  2. Step 2: Convert to fraction form
    25,578.40/35,295.60 = 18,867.68/x
  3. Step 3: Cross multiply
    25,578.40x = 35,295.60 × 18,867.68
  4. Step 4: Simplify right side
    25,578.40x = 665,946,086.21
  5. Step 5: Solve for x
    x = 665,946,086.21/25,578.40
  6. Step 6: Final answer
    x = 26,035.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.