Home / 21,225.37-31,794.31-12,433.63

Finding the Fourth Proportional to 21,225.37, 31,794.31 and 12,433.63

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Solution

The fourth proportional to 21,225.37, 31,794.31 and 12,433.63 is: 18,624.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.37 : 31,794.31 = 12,433.63 : x
  2. Step 2: Convert to fraction form
    21,225.37/31,794.31 = 12,433.63/x
  3. Step 3: Cross multiply
    21,225.37x = 31,794.31 × 12,433.63
  4. Step 4: Simplify right side
    21,225.37x = 395,318,686.65
  5. Step 5: Solve for x
    x = 395,318,686.65/21,225.37
  6. Step 6: Final answer
    x = 18,624.82

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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.