Home / 39,271.84-58,911.85-12,611.09

Finding the Fourth Proportional to 39,271.84, 58,911.85 and 12,611.09

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Solution

The fourth proportional to 39,271.84, 58,911.85 and 12,611.09 is: 18,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,271.84 : 58,911.85 = 12,611.09 : x
  2. Step 2: Convert to fraction form
    39,271.84/58,911.85 = 12,611.09/x
  3. Step 3: Cross multiply
    39,271.84x = 58,911.85 × 12,611.09
  4. Step 4: Simplify right side
    39,271.84x = 742,942,805.46
  5. Step 5: Solve for x
    x = 742,942,805.46/39,271.84
  6. Step 6: Final answer
    x = 18,917.95

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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.