Home / 30,917.89-42,666.92-16,770.84

Finding the Fourth Proportional to 30,917.89, 42,666.92 and 16,770.84

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Solution

The fourth proportional to 30,917.89, 42,666.92 and 16,770.84 is: 23,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917.89 : 42,666.92 = 16,770.84 : x
  2. Step 2: Convert to fraction form
    30,917.89/42,666.92 = 16,770.84/x
  3. Step 3: Cross multiply
    30,917.89x = 42,666.92 × 16,770.84
  4. Step 4: Simplify right side
    30,917.89x = 715,560,088.61
  5. Step 5: Solve for x
    x = 715,560,088.61/30,917.89
  6. Step 6: Final answer
    x = 23,143.88

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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.