Home / 28,650.34-42,974.83-16,878.77

Finding the Fourth Proportional to 28,650.34, 42,974.83 and 16,878.77

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Solution

The fourth proportional to 28,650.34, 42,974.83 and 16,878.77 is: 25,317.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.34 : 42,974.83 = 16,878.77 : x
  2. Step 2: Convert to fraction form
    28,650.34/42,974.83 = 16,878.77/x
  3. Step 3: Cross multiply
    28,650.34x = 42,974.83 × 16,878.77
  4. Step 4: Simplify right side
    28,650.34x = 725,362,271.36
  5. Step 5: Solve for x
    x = 725,362,271.36/28,650.34
  6. Step 6: Final answer
    x = 25,317.75

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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.