Home / 28,775.77-39,711.24-16,029.81

Finding the Fourth Proportional to 28,775.77, 39,711.24 and 16,029.81

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Solution

The fourth proportional to 28,775.77, 39,711.24 and 16,029.81 is: 22,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.77 : 39,711.24 = 16,029.81 : x
  2. Step 2: Convert to fraction form
    28,775.77/39,711.24 = 16,029.81/x
  3. Step 3: Cross multiply
    28,775.77x = 39,711.24 × 16,029.81
  4. Step 4: Simplify right side
    28,775.77x = 636,563,632.06
  5. Step 5: Solve for x
    x = 636,563,632.06/28,775.77
  6. Step 6: Final answer
    x = 22,121.52

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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.