Home / 42,320.23-63,481.64-18,615.49

Finding the Fourth Proportional to 42,320.23, 63,481.64 and 18,615.49

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Solution

The fourth proportional to 42,320.23, 63,481.64 and 18,615.49 is: 27,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,320.23 : 63,481.64 = 18,615.49 : x
  2. Step 2: Convert to fraction form
    42,320.23/63,481.64 = 18,615.49/x
  3. Step 3: Cross multiply
    42,320.23x = 63,481.64 × 18,615.49
  4. Step 4: Simplify right side
    42,320.23x = 1,181,741,582.82
  5. Step 5: Solve for x
    x = 1,181,741,582.82/42,320.23
  6. Step 6: Final answer
    x = 27,923.80

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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.