Home / 28,405.56-42,610.32-8,682.60

Finding the Fourth Proportional to 28,405.56, 42,610.32 and 8,682.60

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Solution

The fourth proportional to 28,405.56, 42,610.32 and 8,682.60 is: 13,024.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.56 : 42,610.32 = 8,682.60 : x
  2. Step 2: Convert to fraction form
    28,405.56/42,610.32 = 8,682.60/x
  3. Step 3: Cross multiply
    28,405.56x = 42,610.32 × 8,682.60
  4. Step 4: Simplify right side
    28,405.56x = 369,968,364.43
  5. Step 5: Solve for x
    x = 369,968,364.43/28,405.56
  6. Step 6: Final answer
    x = 13,024.51

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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.