Home / 28,570.06-42,860.31-8,847.28

Finding the Fourth Proportional to 28,570.06, 42,860.31 and 8,847.28

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Solution

The fourth proportional to 28,570.06, 42,860.31 and 8,847.28 is: 13,272.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.06 : 42,860.31 = 8,847.28 : x
  2. Step 2: Convert to fraction form
    28,570.06/42,860.31 = 8,847.28/x
  3. Step 3: Cross multiply
    28,570.06x = 42,860.31 × 8,847.28
  4. Step 4: Simplify right side
    28,570.06x = 379,197,163.46
  5. Step 5: Solve for x
    x = 379,197,163.46/28,570.06
  6. Step 6: Final answer
    x = 13,272.54

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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.