Home / 25,415.86-35,069.80-15,977.74

Finding the Fourth Proportional to 25,415.86, 35,069.80 and 15,977.74

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Solution

The fourth proportional to 25,415.86, 35,069.80 and 15,977.74 is: 22,046.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.86 : 35,069.80 = 15,977.74 : x
  2. Step 2: Convert to fraction form
    25,415.86/35,069.80 = 15,977.74/x
  3. Step 3: Cross multiply
    25,415.86x = 35,069.80 × 15,977.74
  4. Step 4: Simplify right side
    25,415.86x = 560,336,146.25
  5. Step 5: Solve for x
    x = 560,336,146.25/25,415.86
  6. Step 6: Final answer
    x = 22,046.71

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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.