Home / 21,563.07-29,759.76-12,133.46

Finding the Fourth Proportional to 21,563.07, 29,759.76 and 12,133.46

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Solution

The fourth proportional to 21,563.07, 29,759.76 and 12,133.46 is: 16,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.07 : 29,759.76 = 12,133.46 : x
  2. Step 2: Convert to fraction form
    21,563.07/29,759.76 = 12,133.46/x
  3. Step 3: Cross multiply
    21,563.07x = 29,759.76 × 12,133.46
  4. Step 4: Simplify right side
    21,563.07x = 361,088,708.77
  5. Step 5: Solve for x
    x = 361,088,708.77/21,563.07
  6. Step 6: Final answer
    x = 16,745.70

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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.