Home / 23,171.85-34,771.91-21,289.82

Finding the Fourth Proportional to 23,171.85, 34,771.91 and 21,289.82

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Solution

The fourth proportional to 23,171.85, 34,771.91 and 21,289.82 is: 31,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,171.85 : 34,771.91 = 21,289.82 : x
  2. Step 2: Convert to fraction form
    23,171.85/34,771.91 = 21,289.82/x
  3. Step 3: Cross multiply
    23,171.85x = 34,771.91 × 21,289.82
  4. Step 4: Simplify right side
    23,171.85x = 740,287,424.65
  5. Step 5: Solve for x
    x = 740,287,424.65/23,171.85
  6. Step 6: Final answer
    x = 31,947.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.