Home / 28,730.54-39,625.67-19,661.27

Finding the Fourth Proportional to 28,730.54, 39,625.67 and 19,661.27

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Solution

The fourth proportional to 28,730.54, 39,625.67 and 19,661.27 is: 27,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.54 : 39,625.67 = 19,661.27 : x
  2. Step 2: Convert to fraction form
    28,730.54/39,625.67 = 19,661.27/x
  3. Step 3: Cross multiply
    28,730.54x = 39,625.67 × 19,661.27
  4. Step 4: Simplify right side
    28,730.54x = 779,090,847.83
  5. Step 5: Solve for x
    x = 779,090,847.83/28,730.54
  6. Step 6: Final answer
    x = 27,117.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.