Home / 39,911.18-59,871.41-13,259.55

Finding the Fourth Proportional to 39,911.18, 59,871.41 and 13,259.55

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Solution

The fourth proportional to 39,911.18, 59,871.41 and 13,259.55 is: 19,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911.18 : 59,871.41 = 13,259.55 : x
  2. Step 2: Convert to fraction form
    39,911.18/59,871.41 = 13,259.55/x
  3. Step 3: Cross multiply
    39,911.18x = 59,871.41 × 13,259.55
  4. Step 4: Simplify right side
    39,911.18x = 793,867,896.45
  5. Step 5: Solve for x
    x = 793,867,896.45/39,911.18
  6. Step 6: Final answer
    x = 19,890.86

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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.