Home / 28,716.12-39,628.71-17,385.48

Finding the Fourth Proportional to 28,716.12, 39,628.71 and 17,385.48

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Solution

The fourth proportional to 28,716.12, 39,628.71 and 17,385.48 is: 23,992.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.12 : 39,628.71 = 17,385.48 : x
  2. Step 2: Convert to fraction form
    28,716.12/39,628.71 = 17,385.48/x
  3. Step 3: Cross multiply
    28,716.12x = 39,628.71 × 17,385.48
  4. Step 4: Simplify right side
    28,716.12x = 688,964,145.13
  5. Step 5: Solve for x
    x = 688,964,145.13/28,716.12
  6. Step 6: Final answer
    x = 23,992.24

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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.