Home / 17,289.72-23,870.70-11,982.60

Finding the Fourth Proportional to 17,289.72, 23,870.70 and 11,982.60

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Solution

The fourth proportional to 17,289.72, 23,870.70 and 11,982.60 is: 16,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,289.72 : 23,870.70 = 11,982.60 : x
  2. Step 2: Convert to fraction form
    17,289.72/23,870.70 = 11,982.60/x
  3. Step 3: Cross multiply
    17,289.72x = 23,870.70 × 11,982.60
  4. Step 4: Simplify right side
    17,289.72x = 286,033,049.82
  5. Step 5: Solve for x
    x = 286,033,049.82/17,289.72
  6. Step 6: Final answer
    x = 16,543.53

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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.