Home / 21,225.37-29,289.30-12,273.46

Finding the Fourth Proportional to 21,225.37, 29,289.30 and 12,273.46

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Solution

The fourth proportional to 21,225.37, 29,289.30 and 12,273.46 is: 16,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.37 : 29,289.30 = 12,273.46 : x
  2. Step 2: Convert to fraction form
    21,225.37/29,289.30 = 12,273.46/x
  3. Step 3: Cross multiply
    21,225.37x = 29,289.30 × 12,273.46
  4. Step 4: Simplify right side
    21,225.37x = 359,481,051.98
  5. Step 5: Solve for x
    x = 359,481,051.98/21,225.37
  6. Step 6: Final answer
    x = 16,936.39

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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.