Home / 30,979.74-42,752.43-16,832.82

Finding the Fourth Proportional to 30,979.74, 42,752.43 and 16,832.82

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Solution

The fourth proportional to 30,979.74, 42,752.43 and 16,832.82 is: 23,229.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.74 : 42,752.43 = 16,832.82 : x
  2. Step 2: Convert to fraction form
    30,979.74/42,752.43 = 16,832.82/x
  3. Step 3: Cross multiply
    30,979.74x = 42,752.43 × 16,832.82
  4. Step 4: Simplify right side
    30,979.74x = 719,643,958.75
  5. Step 5: Solve for x
    x = 719,643,958.75/30,979.74
  6. Step 6: Final answer
    x = 23,229.50

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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.