Home / 30,860.89-42,587.94-16,713.70

Finding the Fourth Proportional to 30,860.89, 42,587.94 and 16,713.70

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Solution

The fourth proportional to 30,860.89, 42,587.94 and 16,713.70 is: 23,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.89 : 42,587.94 = 16,713.70 : x
  2. Step 2: Convert to fraction form
    30,860.89/42,587.94 = 16,713.70/x
  3. Step 3: Cross multiply
    30,860.89x = 42,587.94 × 16,713.70
  4. Step 4: Simplify right side
    30,860.89x = 711,802,052.78
  5. Step 5: Solve for x
    x = 711,802,052.78/30,860.89
  6. Step 6: Final answer
    x = 23,064.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.