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Finding the Fourth Proportional to 37,422.36, 51,642.54 and 20,655

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Solution

The fourth proportional to 37,422.36, 51,642.54 and 20,655 is: 28,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,422.36 : 51,642.54 = 20,655 : x
  2. Step 2: Convert to fraction form
    37,422.36/51,642.54 = 20,655/x
  3. Step 3: Cross multiply
    37,422.36x = 51,642.54 × 20,655
  4. Step 4: Simplify right side
    37,422.36x = 1,066,676,663.70
  5. Step 5: Solve for x
    x = 1,066,676,663.70/37,422.36
  6. Step 6: Final answer
    x = 28,503.73

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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.