Home / 21,193.84-31,790.98-6,402.88

Finding the Fourth Proportional to 21,193.84, 31,790.98 and 6,402.88

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Solution

The fourth proportional to 21,193.84, 31,790.98 and 6,402.88 is: 9,604.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.84 : 31,790.98 = 6,402.88 : x
  2. Step 2: Convert to fraction form
    21,193.84/31,790.98 = 6,402.88/x
  3. Step 3: Cross multiply
    21,193.84x = 31,790.98 × 6,402.88
  4. Step 4: Simplify right side
    21,193.84x = 203,553,830.02
  5. Step 5: Solve for x
    x = 203,553,830.02/21,193.84
  6. Step 6: Final answer
    x = 9,604.39

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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.