Home / 39,910.36-59,877.72-18,866.56

Finding the Fourth Proportional to 39,910.36, 59,877.72 and 18,866.56

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Solution

The fourth proportional to 39,910.36, 59,877.72 and 18,866.56 is: 28,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.36 : 59,877.72 = 18,866.56 : x
  2. Step 2: Convert to fraction form
    39,910.36/59,877.72 = 18,866.56/x
  3. Step 3: Cross multiply
    39,910.36x = 59,877.72 × 18,866.56
  4. Step 4: Simplify right side
    39,910.36x = 1,129,686,597.04
  5. Step 5: Solve for x
    x = 1,129,686,597.04/39,910.36
  6. Step 6: Final answer
    x = 28,305.60

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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.