Home / 28,860.68-43,289.10-11,333.48

Finding the Fourth Proportional to 28,860.68, 43,289.10 and 11,333.48

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Solution

The fourth proportional to 28,860.68, 43,289.10 and 11,333.48 is: 16,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.68 : 43,289.10 = 11,333.48 : x
  2. Step 2: Convert to fraction form
    28,860.68/43,289.10 = 11,333.48/x
  3. Step 3: Cross multiply
    28,860.68x = 43,289.10 × 11,333.48
  4. Step 4: Simplify right side
    28,860.68x = 490,616,149.07
  5. Step 5: Solve for x
    x = 490,616,149.07/28,860.68
  6. Step 6: Final answer
    x = 16,999.47

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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.