Home / 30,250.78-41,746.80-16,822.60

Finding the Fourth Proportional to 30,250.78, 41,746.80 and 16,822.60

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Solution

The fourth proportional to 30,250.78, 41,746.80 and 16,822.60 is: 23,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.78 : 41,746.80 = 16,822.60 : x
  2. Step 2: Convert to fraction form
    30,250.78/41,746.80 = 16,822.60/x
  3. Step 3: Cross multiply
    30,250.78x = 41,746.80 × 16,822.60
  4. Step 4: Simplify right side
    30,250.78x = 702,289,717.68
  5. Step 5: Solve for x
    x = 702,289,717.68/30,250.78
  6. Step 6: Final answer
    x = 23,215.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.