Home / 43,038.39-64,561.31-11,873.64

Finding the Fourth Proportional to 43,038.39, 64,561.31 and 11,873.64

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Solution

The fourth proportional to 43,038.39, 64,561.31 and 11,873.64 is: 17,811.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,038.39 : 64,561.31 = 11,873.64 : x
  2. Step 2: Convert to fraction form
    43,038.39/64,561.31 = 11,873.64/x
  3. Step 3: Cross multiply
    43,038.39x = 64,561.31 × 11,873.64
  4. Step 4: Simplify right side
    43,038.39x = 766,577,899.43
  5. Step 5: Solve for x
    x = 766,577,899.43/43,038.39
  6. Step 6: Final answer
    x = 17,811.49

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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.