Home / 28,860.64-39,823.76-16,112.32

Finding the Fourth Proportional to 28,860.64, 39,823.76 and 16,112.32

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Solution

The fourth proportional to 28,860.64, 39,823.76 and 16,112.32 is: 22,232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.64 : 39,823.76 = 16,112.32 : x
  2. Step 2: Convert to fraction form
    28,860.64/39,823.76 = 16,112.32/x
  3. Step 3: Cross multiply
    28,860.64x = 39,823.76 × 16,112.32
  4. Step 4: Simplify right side
    28,860.64x = 641,653,164.72
  5. Step 5: Solve for x
    x = 641,653,164.72/28,860.64
  6. Step 6: Final answer
    x = 22,232.81

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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.