Home / 39,993.48-59,979.78-11,905.92

Finding the Fourth Proportional to 39,993.48, 59,979.78 and 11,905.92

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Solution

The fourth proportional to 39,993.48, 59,979.78 and 11,905.92 is: 17,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993.48 : 59,979.78 = 11,905.92 : x
  2. Step 2: Convert to fraction form
    39,993.48/59,979.78 = 11,905.92/x
  3. Step 3: Cross multiply
    39,993.48x = 59,979.78 × 11,905.92
  4. Step 4: Simplify right side
    39,993.48x = 714,114,462.30
  5. Step 5: Solve for x
    x = 714,114,462.30/39,993.48
  6. Step 6: Final answer
    x = 17,855.77

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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.