Home / 39,911.54-59,871.93-13,259.90

Finding the Fourth Proportional to 39,911.54, 59,871.93 and 13,259.90

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Solution

The fourth proportional to 39,911.54, 59,871.93 and 13,259.90 is: 19,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911.54 : 59,871.93 = 13,259.90 : x
  2. Step 2: Convert to fraction form
    39,911.54/59,871.93 = 13,259.90/x
  3. Step 3: Cross multiply
    39,911.54x = 59,871.93 × 13,259.90
  4. Step 4: Simplify right side
    39,911.54x = 793,895,904.56
  5. Step 5: Solve for x
    x = 793,895,904.56/39,911.54
  6. Step 6: Final answer
    x = 19,891.39

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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.