Home / 25,171.65-34,728.23-15,608.09

Finding the Fourth Proportional to 25,171.65, 34,728.23 and 15,608.09

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Solution

The fourth proportional to 25,171.65, 34,728.23 and 15,608.09 is: 21,533.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,171.65 : 34,728.23 = 15,608.09 : x
  2. Step 2: Convert to fraction form
    25,171.65/34,728.23 = 15,608.09/x
  3. Step 3: Cross multiply
    25,171.65x = 34,728.23 × 15,608.09
  4. Step 4: Simplify right side
    25,171.65x = 542,041,530.34
  5. Step 5: Solve for x
    x = 542,041,530.34/25,171.65
  6. Step 6: Final answer
    x = 21,533.81

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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.