Home / 28,128.97-38,809.63-16,192.00

Finding the Fourth Proportional to 28,128.97, 38,809.63 and 16,192.00

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Solution

The fourth proportional to 28,128.97, 38,809.63 and 16,192.00 is: 22,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,128.97 : 38,809.63 = 16,192.00 : x
  2. Step 2: Convert to fraction form
    28,128.97/38,809.63 = 16,192.00/x
  3. Step 3: Cross multiply
    28,128.97x = 38,809.63 × 16,192.00
  4. Step 4: Simplify right side
    28,128.97x = 628,405,597.71
  5. Step 5: Solve for x
    x = 628,405,597.71/28,128.97
  6. Step 6: Final answer
    x = 22,340.16

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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.