Home / 26,579.80-39,804.90-12,712.60

Finding the Fourth Proportional to 26,579.80, 39,804.90 and 12,712.60

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Solution

The fourth proportional to 26,579.80, 39,804.90 and 12,712.60 is: 19,037.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,579.80 : 39,804.90 = 12,712.60 : x
  2. Step 2: Convert to fraction form
    26,579.80/39,804.90 = 12,712.60/x
  3. Step 3: Cross multiply
    26,579.80x = 39,804.90 × 12,712.60
  4. Step 4: Simplify right side
    26,579.80x = 506,023,771.74
  5. Step 5: Solve for x
    x = 506,023,771.74/26,579.80
  6. Step 6: Final answer
    x = 19,037.91

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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.