Home / 28,742.88-43,088.73-11,208.69

Finding the Fourth Proportional to 28,742.88, 43,088.73 and 11,208.69

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Solution

The fourth proportional to 28,742.88, 43,088.73 and 11,208.69 is: 16,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.88 : 43,088.73 = 11,208.69 : x
  2. Step 2: Convert to fraction form
    28,742.88/43,088.73 = 11,208.69/x
  3. Step 3: Cross multiply
    28,742.88x = 43,088.73 × 11,208.69
  4. Step 4: Simplify right side
    28,742.88x = 482,968,217.06
  5. Step 5: Solve for x
    x = 482,968,217.06/28,742.88
  6. Step 6: Final answer
    x = 16,803.06

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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.