Home / 39,188.49-58,790.03-12,911.64

Finding the Fourth Proportional to 39,188.49, 58,790.03 and 12,911.64

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Solution

The fourth proportional to 39,188.49, 58,790.03 and 12,911.64 is: 19,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.49 : 58,790.03 = 12,911.64 : x
  2. Step 2: Convert to fraction form
    39,188.49/58,790.03 = 12,911.64/x
  3. Step 3: Cross multiply
    39,188.49x = 58,790.03 × 12,911.64
  4. Step 4: Simplify right side
    39,188.49x = 759,075,638.39
  5. Step 5: Solve for x
    x = 759,075,638.39/39,188.49
  6. Step 6: Final answer
    x = 19,369.86

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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.