Home / 21,225.07-31,793.85-12,433.33

Finding the Fourth Proportional to 21,225.07, 31,793.85 and 12,433.33

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Solution

The fourth proportional to 21,225.07, 31,793.85 and 12,433.33 is: 18,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.07 : 31,793.85 = 12,433.33 : x
  2. Step 2: Convert to fraction form
    21,225.07/31,793.85 = 12,433.33/x
  3. Step 3: Cross multiply
    21,225.07x = 31,793.85 × 12,433.33
  4. Step 4: Simplify right side
    21,225.07x = 395,303,429.02
  5. Step 5: Solve for x
    x = 395,303,429.02/21,225.07
  6. Step 6: Final answer
    x = 18,624.36

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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.