Home / 27,146.48-37,484.96-20,420.44

Finding the Fourth Proportional to 27,146.48, 37,484.96 and 20,420.44

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Solution

The fourth proportional to 27,146.48, 37,484.96 and 20,420.44 is: 28,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,146.48 : 37,484.96 = 20,420.44 : x
  2. Step 2: Convert to fraction form
    27,146.48/37,484.96 = 20,420.44/x
  3. Step 3: Cross multiply
    27,146.48x = 37,484.96 × 20,420.44
  4. Step 4: Simplify right side
    27,146.48x = 765,459,180.77
  5. Step 5: Solve for x
    x = 765,459,180.77/27,146.48
  6. Step 6: Final answer
    x = 28,197.37

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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.