Home / 30,178.54-41,644.43-16,749.80

Finding the Fourth Proportional to 30,178.54, 41,644.43 and 16,749.80

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Solution

The fourth proportional to 30,178.54, 41,644.43 and 16,749.80 is: 23,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,178.54 : 41,644.43 = 16,749.80 : x
  2. Step 2: Convert to fraction form
    30,178.54/41,644.43 = 16,749.80/x
  3. Step 3: Cross multiply
    30,178.54x = 41,644.43 × 16,749.80
  4. Step 4: Simplify right side
    30,178.54x = 697,535,915.49
  5. Step 5: Solve for x
    x = 697,535,915.49/30,178.54
  6. Step 6: Final answer
    x = 23,113.64

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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.