Home / 20,485.37-30,706.16-14,624.21

Finding the Fourth Proportional to 20,485.37, 30,706.16 and 14,624.21

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Solution

The fourth proportional to 20,485.37, 30,706.16 and 14,624.21 is: 21,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,485.37 : 30,706.16 = 14,624.21 : x
  2. Step 2: Convert to fraction form
    20,485.37/30,706.16 = 14,624.21/x
  3. Step 3: Cross multiply
    20,485.37x = 30,706.16 × 14,624.21
  4. Step 4: Simplify right side
    20,485.37x = 449,053,335.78
  5. Step 5: Solve for x
    x = 449,053,335.78/20,485.37
  6. Step 6: Final answer
    x = 21,920.68

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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.