Home / 25,578.80-35,288.98-18,880.41

Finding the Fourth Proportional to 25,578.80, 35,288.98 and 18,880.41

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Solution

The fourth proportional to 25,578.80, 35,288.98 and 18,880.41 is: 26,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,578.80 : 35,288.98 = 18,880.41 : x
  2. Step 2: Convert to fraction form
    25,578.80/35,288.98 = 18,880.41/x
  3. Step 3: Cross multiply
    25,578.80x = 35,288.98 × 18,880.41
  4. Step 4: Simplify right side
    25,578.80x = 666,270,410.88
  5. Step 5: Solve for x
    x = 666,270,410.88/25,578.80
  6. Step 6: Final answer
    x = 26,047.76

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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.