Home / 28,776.87-39,711.01-16,029.75

Finding the Fourth Proportional to 28,776.87, 39,711.01 and 16,029.75

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Solution

The fourth proportional to 28,776.87, 39,711.01 and 16,029.75 is: 22,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.87 : 39,711.01 = 16,029.75 : x
  2. Step 2: Convert to fraction form
    28,776.87/39,711.01 = 16,029.75/x
  3. Step 3: Cross multiply
    28,776.87x = 39,711.01 × 16,029.75
  4. Step 4: Simplify right side
    28,776.87x = 636,557,478.07
  5. Step 5: Solve for x
    x = 636,557,478.07/28,776.87
  6. Step 6: Final answer
    x = 22,120.46

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1.5x scale

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.