Home / 21,050.37-29,049.30-12,100.68

Finding the Fourth Proportional to 21,050.37, 29,049.30 and 12,100.68

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Solution

The fourth proportional to 21,050.37, 29,049.30 and 12,100.68 is: 16,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.37 : 29,049.30 = 12,100.68 : x
  2. Step 2: Convert to fraction form
    21,050.37/29,049.30 = 12,100.68/x
  3. Step 3: Cross multiply
    21,050.37x = 29,049.30 × 12,100.68
  4. Step 4: Simplify right side
    21,050.37x = 351,516,283.52
  5. Step 5: Solve for x
    x = 351,516,283.52/21,050.37
  6. Step 6: Final answer
    x = 16,698.82

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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.