Home / 28,933.80-39,932.32-16,187.69

Finding the Fourth Proportional to 28,933.80, 39,932.32 and 16,187.69

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Solution

The fourth proportional to 28,933.80, 39,932.32 and 16,187.69 is: 22,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.80 : 39,932.32 = 16,187.69 : x
  2. Step 2: Convert to fraction form
    28,933.80/39,932.32 = 16,187.69/x
  3. Step 3: Cross multiply
    28,933.80x = 39,932.32 × 16,187.69
  4. Step 4: Simplify right side
    28,933.80x = 646,412,017.14
  5. Step 5: Solve for x
    x = 646,412,017.14/28,933.80
  6. Step 6: Final answer
    x = 22,341.07

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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.