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Finding the Fourth Proportional to 28,281, 42,122.77 and 26,800.68

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Solution

The fourth proportional to 28,281, 42,122.77 and 26,800.68 is: 39,917.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281 : 42,122.77 = 26,800.68 : x
  2. Step 2: Convert to fraction form
    28,281/42,122.77 = 26,800.68/x
  3. Step 3: Cross multiply
    28,281x = 42,122.77 × 26,800.68
  4. Step 4: Simplify right side
    28,281x = 1,128,918,879.48
  5. Step 5: Solve for x
    x = 1,128,918,879.48/28,281
  6. Step 6: Final answer
    x = 39,917.93

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.