Home / 28,561.78-42,838.44-11,029.42

Finding the Fourth Proportional to 28,561.78, 42,838.44 and 11,029.42

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Solution

The fourth proportional to 28,561.78, 42,838.44 and 11,029.42 is: 16,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.78 : 42,838.44 = 11,029.42 : x
  2. Step 2: Convert to fraction form
    28,561.78/42,838.44 = 11,029.42/x
  3. Step 3: Cross multiply
    28,561.78x = 42,838.44 × 11,029.42
  4. Step 4: Simplify right side
    28,561.78x = 472,483,146.90
  5. Step 5: Solve for x
    x = 472,483,146.90/28,561.78
  6. Step 6: Final answer
    x = 16,542.50

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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.