Home / 28,864.64-39,829.28-16,116.32

Finding the Fourth Proportional to 28,864.64, 39,829.28 and 16,116.32

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Solution

The fourth proportional to 28,864.64, 39,829.28 and 16,116.32 is: 22,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.64 : 39,829.28 = 16,116.32 : x
  2. Step 2: Convert to fraction form
    28,864.64/39,829.28 = 16,116.32/x
  3. Step 3: Cross multiply
    28,864.64x = 39,829.28 × 16,116.32
  4. Step 4: Simplify right side
    28,864.64x = 641,901,421.85
  5. Step 5: Solve for x
    x = 641,901,421.85/28,864.64
  6. Step 6: Final answer
    x = 22,238.33

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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.