Home / 28,126.88-42,190.30-11,483.97

Finding the Fourth Proportional to 28,126.88, 42,190.30 and 11,483.97

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Solution

The fourth proportional to 28,126.88, 42,190.30 and 11,483.97 is: 17,225.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.88 : 42,190.30 = 11,483.97 : x
  2. Step 2: Convert to fraction form
    28,126.88/42,190.30 = 11,483.97/x
  3. Step 3: Cross multiply
    28,126.88x = 42,190.30 × 11,483.97
  4. Step 4: Simplify right side
    28,126.88x = 484,512,139.49
  5. Step 5: Solve for x
    x = 484,512,139.49/28,126.88
  6. Step 6: Final answer
    x = 17,225.95

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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.