Home / 28,483.36-42,716.96-11,822.78

Finding the Fourth Proportional to 28,483.36, 42,716.96 and 11,822.78

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Solution

The fourth proportional to 28,483.36, 42,716.96 and 11,822.78 is: 17,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.36 : 42,716.96 = 11,822.78 : x
  2. Step 2: Convert to fraction form
    28,483.36/42,716.96 = 11,822.78/x
  3. Step 3: Cross multiply
    28,483.36x = 42,716.96 × 11,822.78
  4. Step 4: Simplify right side
    28,483.36x = 505,033,220.35
  5. Step 5: Solve for x
    x = 505,033,220.35/28,483.36
  6. Step 6: Final answer
    x = 17,730.82

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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.