Home / 25,415.44-35,074.55-15,343.70

Finding the Fourth Proportional to 25,415.44, 35,074.55 and 15,343.70

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Solution

The fourth proportional to 25,415.44, 35,074.55 and 15,343.70 is: 21,175.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.44 : 35,074.55 = 15,343.70 : x
  2. Step 2: Convert to fraction form
    25,415.44/35,074.55 = 15,343.70/x
  3. Step 3: Cross multiply
    25,415.44x = 35,074.55 × 15,343.70
  4. Step 4: Simplify right side
    25,415.44x = 538,173,235.82
  5. Step 5: Solve for x
    x = 538,173,235.82/25,415.44
  6. Step 6: Final answer
    x = 21,175.05

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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.