Home / 28,629.05-42,943.64-7,852.55

Finding the Fourth Proportional to 28,629.05, 42,943.64 and 7,852.55

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Solution

The fourth proportional to 28,629.05, 42,943.64 and 7,852.55 is: 11,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.05 : 42,943.64 = 7,852.55 : x
  2. Step 2: Convert to fraction form
    28,629.05/42,943.64 = 7,852.55/x
  3. Step 3: Cross multiply
    28,629.05x = 42,943.64 × 7,852.55
  4. Step 4: Simplify right side
    28,629.05x = 337,216,826.30
  5. Step 5: Solve for x
    x = 337,216,826.30/28,629.05
  6. Step 6: Final answer
    x = 11,778.84

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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.