Home / 30,255.78-41,748.69-16,827.30

Finding the Fourth Proportional to 30,255.78, 41,748.69 and 16,827.30

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Solution

The fourth proportional to 30,255.78, 41,748.69 and 16,827.30 is: 23,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,255.78 : 41,748.69 = 16,827.30 : x
  2. Step 2: Convert to fraction form
    30,255.78/41,748.69 = 16,827.30/x
  3. Step 3: Cross multiply
    30,255.78x = 41,748.69 × 16,827.30
  4. Step 4: Simplify right side
    30,255.78x = 702,517,731.24
  5. Step 5: Solve for x
    x = 702,517,731.24/30,255.78
  6. Step 6: Final answer
    x = 23,219.29

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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.