Home / 28,860.60-43,295.45-12,220.72

Finding the Fourth Proportional to 28,860.60, 43,295.45 and 12,220.72

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Solution

The fourth proportional to 28,860.60, 43,295.45 and 12,220.72 is: 18,333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.60 : 43,295.45 = 12,220.72 : x
  2. Step 2: Convert to fraction form
    28,860.60/43,295.45 = 12,220.72/x
  3. Step 3: Cross multiply
    28,860.60x = 43,295.45 × 12,220.72
  4. Step 4: Simplify right side
    28,860.60x = 529,101,571.72
  5. Step 5: Solve for x
    x = 529,101,571.72/28,860.60
  6. Step 6: Final answer
    x = 18,333.01

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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.