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Finding the Fourth Proportional to 36,861.40, 55,300.20 and 11,897.20

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Solution

The fourth proportional to 36,861.40, 55,300.20 and 11,897.20 is: 17,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,861.40 : 55,300.20 = 11,897.20 : x
  2. Step 2: Convert to fraction form
    36,861.40/55,300.20 = 11,897.20/x
  3. Step 3: Cross multiply
    36,861.40x = 55,300.20 × 11,897.20
  4. Step 4: Simplify right side
    36,861.40x = 657,917,539.44
  5. Step 5: Solve for x
    x = 657,917,539.44/36,861.40
  6. Step 6: Final answer
    x = 17,848.41

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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.