Home / 21,306.14-31,958.01-6,513.89

Finding the Fourth Proportional to 21,306.14, 31,958.01 and 6,513.89

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Solution

The fourth proportional to 21,306.14, 31,958.01 and 6,513.89 is: 9,770.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.14 : 31,958.01 = 6,513.89 : x
  2. Step 2: Convert to fraction form
    21,306.14/31,958.01 = 6,513.89/x
  3. Step 3: Cross multiply
    21,306.14x = 31,958.01 × 6,513.89
  4. Step 4: Simplify right side
    21,306.14x = 208,170,801.97
  5. Step 5: Solve for x
    x = 208,170,801.97/21,306.14
  6. Step 6: Final answer
    x = 9,770.46

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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.