Home / 28,764.78-39,690.77-16,017.81

Finding the Fourth Proportional to 28,764.78, 39,690.77 and 16,017.81

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Solution

The fourth proportional to 28,764.78, 39,690.77 and 16,017.81 is: 22,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.78 : 39,690.77 = 16,017.81 : x
  2. Step 2: Convert to fraction form
    28,764.78/39,690.77 = 16,017.81/x
  3. Step 3: Cross multiply
    28,764.78x = 39,690.77 × 16,017.81
  4. Step 4: Simplify right side
    28,764.78x = 635,759,212.61
  5. Step 5: Solve for x
    x = 635,759,212.61/28,764.78
  6. Step 6: Final answer
    x = 22,102.00

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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.