Home / 21,842.57-30,141.04-12,152.36

Finding the Fourth Proportional to 21,842.57, 30,141.04 and 12,152.36

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Solution

The fourth proportional to 21,842.57, 30,141.04 and 12,152.36 is: 16,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842.57 : 30,141.04 = 12,152.36 : x
  2. Step 2: Convert to fraction form
    21,842.57/30,141.04 = 12,152.36/x
  3. Step 3: Cross multiply
    21,842.57x = 30,141.04 × 12,152.36
  4. Step 4: Simplify right side
    21,842.57x = 366,284,708.09
  5. Step 5: Solve for x
    x = 366,284,708.09/21,842.57
  6. Step 6: Final answer
    x = 16,769.30

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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.