Home / 28,828.64-39,786.08-16,255.84

Finding the Fourth Proportional to 28,828.64, 39,786.08 and 16,255.84

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Solution

The fourth proportional to 28,828.64, 39,786.08 and 16,255.84 is: 22,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.64 : 39,786.08 = 16,255.84 : x
  2. Step 2: Convert to fraction form
    28,828.64/39,786.08 = 16,255.84/x
  3. Step 3: Cross multiply
    28,828.64x = 39,786.08 × 16,255.84
  4. Step 4: Simplify right side
    28,828.64x = 646,756,150.71
  5. Step 5: Solve for x
    x = 646,756,150.71/28,828.64
  6. Step 6: Final answer
    x = 22,434.50

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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.