Home / 28,865.36-39,828.84-16,287.68

Finding the Fourth Proportional to 28,865.36, 39,828.84 and 16,287.68

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Solution

The fourth proportional to 28,865.36, 39,828.84 and 16,287.68 is: 22,473.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.36 : 39,828.84 = 16,287.68 : x
  2. Step 2: Convert to fraction form
    28,865.36/39,828.84 = 16,287.68/x
  3. Step 3: Cross multiply
    28,865.36x = 39,828.84 × 16,287.68
  4. Step 4: Simplify right side
    28,865.36x = 648,719,400.69
  5. Step 5: Solve for x
    x = 648,719,400.69/28,865.36
  6. Step 6: Final answer
    x = 22,473.98

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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.