Home / 25,405.65-35,072.19-16,912.80

Finding the Fourth Proportional to 25,405.65, 35,072.19 and 16,912.80

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Solution

The fourth proportional to 25,405.65, 35,072.19 and 16,912.80 is: 23,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.65 : 35,072.19 = 16,912.80 : x
  2. Step 2: Convert to fraction form
    25,405.65/35,072.19 = 16,912.80/x
  3. Step 3: Cross multiply
    25,405.65x = 35,072.19 × 16,912.80
  4. Step 4: Simplify right side
    25,405.65x = 593,168,935.03
  5. Step 5: Solve for x
    x = 593,168,935.03/25,405.65
  6. Step 6: Final answer
    x = 23,347.91

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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.