Home / 30,983.74-42,757.70-16,836.56

Finding the Fourth Proportional to 30,983.74, 42,757.70 and 16,836.56

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Solution

The fourth proportional to 30,983.74, 42,757.70 and 16,836.56 is: 23,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.74 : 42,757.70 = 16,836.56 : x
  2. Step 2: Convert to fraction form
    30,983.74/42,757.70 = 16,836.56/x
  3. Step 3: Cross multiply
    30,983.74x = 42,757.70 × 16,836.56
  4. Step 4: Simplify right side
    30,983.74x = 719,892,581.51
  5. Step 5: Solve for x
    x = 719,892,581.51/30,983.74
  6. Step 6: Final answer
    x = 23,234.53

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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.