Home / 39,669.52-59,515.80-18,910.48

Finding the Fourth Proportional to 39,669.52, 59,515.80 and 18,910.48

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Solution

The fourth proportional to 39,669.52, 59,515.80 and 18,910.48 is: 28,371.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669.52 : 59,515.80 = 18,910.48 : x
  2. Step 2: Convert to fraction form
    39,669.52/59,515.80 = 18,910.48/x
  3. Step 3: Cross multiply
    39,669.52x = 59,515.80 × 18,910.48
  4. Step 4: Simplify right side
    39,669.52x = 1,125,472,345.58
  5. Step 5: Solve for x
    x = 1,125,472,345.58/39,669.52
  6. Step 6: Final answer
    x = 28,371.21

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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.