Home / 28,565.23-39,398.77-18,485.89

Finding the Fourth Proportional to 28,565.23, 39,398.77 and 18,485.89

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Solution

The fourth proportional to 28,565.23, 39,398.77 and 18,485.89 is: 25,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565.23 : 39,398.77 = 18,485.89 : x
  2. Step 2: Convert to fraction form
    28,565.23/39,398.77 = 18,485.89/x
  3. Step 3: Cross multiply
    28,565.23x = 39,398.77 × 18,485.89
  4. Step 4: Simplify right side
    28,565.23x = 728,321,328.36
  5. Step 5: Solve for x
    x = 728,321,328.36/28,565.23
  6. Step 6: Final answer
    x = 25,496.78

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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.