Home / 28,673.58-43,015.77-12,878.24

Finding the Fourth Proportional to 28,673.58, 43,015.77 and 12,878.24

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Solution

The fourth proportional to 28,673.58, 43,015.77 and 12,878.24 is: 19,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.58 : 43,015.77 = 12,878.24 : x
  2. Step 2: Convert to fraction form
    28,673.58/43,015.77 = 12,878.24/x
  3. Step 3: Cross multiply
    28,673.58x = 43,015.77 × 12,878.24
  4. Step 4: Simplify right side
    28,673.58x = 553,967,194.77
  5. Step 5: Solve for x
    x = 553,967,194.77/28,673.58
  6. Step 6: Final answer
    x = 19,319.78

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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.