Home / 21,206.20-31,809.30-16,300.60

Finding the Fourth Proportional to 21,206.20, 31,809.30 and 16,300.60

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Solution

The fourth proportional to 21,206.20, 31,809.30 and 16,300.60 is: 24,450.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.20 : 31,809.30 = 16,300.60 : x
  2. Step 2: Convert to fraction form
    21,206.20/31,809.30 = 16,300.60/x
  3. Step 3: Cross multiply
    21,206.20x = 31,809.30 × 16,300.60
  4. Step 4: Simplify right side
    21,206.20x = 518,510,675.58
  5. Step 5: Solve for x
    x = 518,510,675.58/21,206.20
  6. Step 6: Final answer
    x = 24,450.90

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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.