Home / 39,107.56-58,669.84-12,811.32

Finding the Fourth Proportional to 39,107.56, 58,669.84 and 12,811.32

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Solution

The fourth proportional to 39,107.56, 58,669.84 and 12,811.32 is: 19,219.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,107.56 : 58,669.84 = 12,811.32 : x
  2. Step 2: Convert to fraction form
    39,107.56/58,669.84 = 12,811.32/x
  3. Step 3: Cross multiply
    39,107.56x = 58,669.84 × 12,811.32
  4. Step 4: Simplify right side
    39,107.56x = 751,638,094.59
  5. Step 5: Solve for x
    x = 751,638,094.59/39,107.56
  6. Step 6: Final answer
    x = 19,219.76

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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.