Home / 39,880.08-59,816.52-12,178.08

Finding the Fourth Proportional to 39,880.08, 59,816.52 and 12,178.08

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Solution

The fourth proportional to 39,880.08, 59,816.52 and 12,178.08 is: 18,266.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,880.08 : 59,816.52 = 12,178.08 : x
  2. Step 2: Convert to fraction form
    39,880.08/59,816.52 = 12,178.08/x
  3. Step 3: Cross multiply
    39,880.08x = 59,816.52 × 12,178.08
  4. Step 4: Simplify right side
    39,880.08x = 728,450,365.88
  5. Step 5: Solve for x
    x = 728,450,365.88/39,880.08
  6. Step 6: Final answer
    x = 18,266.02

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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.