Home / 21,302.20-31,895.70-16,694.20

Finding the Fourth Proportional to 21,302.20, 31,895.70 and 16,694.20

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Solution

The fourth proportional to 21,302.20, 31,895.70 and 16,694.20 is: 24,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.20 : 31,895.70 = 16,694.20 : x
  2. Step 2: Convert to fraction form
    21,302.20/31,895.70 = 16,694.20/x
  3. Step 3: Cross multiply
    21,302.20x = 31,895.70 × 16,694.20
  4. Step 4: Simplify right side
    21,302.20x = 532,473,194.94
  5. Step 5: Solve for x
    x = 532,473,194.94/21,302.20
  6. Step 6: Final answer
    x = 24,996.16

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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.