Home / 28,560.78-42,836.94-11,028.42

Finding the Fourth Proportional to 28,560.78, 42,836.94 and 11,028.42

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Solution

The fourth proportional to 28,560.78, 42,836.94 and 11,028.42 is: 16,541.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.78 : 42,836.94 = 11,028.42 : x
  2. Step 2: Convert to fraction form
    28,560.78/42,836.94 = 11,028.42/x
  3. Step 3: Cross multiply
    28,560.78x = 42,836.94 × 11,028.42
  4. Step 4: Simplify right side
    28,560.78x = 472,423,765.83
  5. Step 5: Solve for x
    x = 472,423,765.83/28,560.78
  6. Step 6: Final answer
    x = 16,541.00

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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.