Home / 28,424.94-42,634.58-8,703.60

Finding the Fourth Proportional to 28,424.94, 42,634.58 and 8,703.60

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Solution

The fourth proportional to 28,424.94, 42,634.58 and 8,703.60 is: 13,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.94 : 42,634.58 = 8,703.60 : x
  2. Step 2: Convert to fraction form
    28,424.94/42,634.58 = 8,703.60/x
  3. Step 3: Cross multiply
    28,424.94x = 42,634.58 × 8,703.60
  4. Step 4: Simplify right side
    28,424.94x = 371,074,286.97
  5. Step 5: Solve for x
    x = 371,074,286.97/28,424.94
  6. Step 6: Final answer
    x = 13,054.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.