Home / 31,130.08-42,958.66-16,982.92

Finding the Fourth Proportional to 31,130.08, 42,958.66 and 16,982.92

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Solution

The fourth proportional to 31,130.08, 42,958.66 and 16,982.92 is: 23,435.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,130.08 : 42,958.66 = 16,982.92 : x
  2. Step 2: Convert to fraction form
    31,130.08/42,958.66 = 16,982.92/x
  3. Step 3: Cross multiply
    31,130.08x = 42,958.66 × 16,982.92
  4. Step 4: Simplify right side
    31,130.08x = 729,563,486.09
  5. Step 5: Solve for x
    x = 729,563,486.09/31,130.08
  6. Step 6: Final answer
    x = 23,435.97

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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.