Home / 25,408.80-35,074.08-18,344.64

Finding the Fourth Proportional to 25,408.80, 35,074.08 and 18,344.64

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Solution

The fourth proportional to 25,408.80, 35,074.08 and 18,344.64 is: 25,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,408.80 : 35,074.08 = 18,344.64 : x
  2. Step 2: Convert to fraction form
    25,408.80/35,074.08 = 18,344.64/x
  3. Step 3: Cross multiply
    25,408.80x = 35,074.08 × 18,344.64
  4. Step 4: Simplify right side
    25,408.80x = 643,421,370.93
  5. Step 5: Solve for x
    x = 643,421,370.93/25,408.80
  6. Step 6: Final answer
    x = 25,322.78

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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.