Home / 42,559.37-63,836.65-18,860.09

Finding the Fourth Proportional to 42,559.37, 63,836.65 and 18,860.09

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Solution

The fourth proportional to 42,559.37, 63,836.65 and 18,860.09 is: 28,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,559.37 : 63,836.65 = 18,860.09 : x
  2. Step 2: Convert to fraction form
    42,559.37/63,836.65 = 18,860.09/x
  3. Step 3: Cross multiply
    42,559.37x = 63,836.65 × 18,860.09
  4. Step 4: Simplify right side
    42,559.37x = 1,203,964,597.97
  5. Step 5: Solve for x
    x = 1,203,964,597.97/42,559.37
  6. Step 6: Final answer
    x = 28,289.06

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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.