Home / 31,317.35-43,218.08-16,977.42

Finding the Fourth Proportional to 31,317.35, 43,218.08 and 16,977.42

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Solution

The fourth proportional to 31,317.35, 43,218.08 and 16,977.42 is: 23,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,317.35 : 43,218.08 = 16,977.42 : x
  2. Step 2: Convert to fraction form
    31,317.35/43,218.08 = 16,977.42/x
  3. Step 3: Cross multiply
    31,317.35x = 43,218.08 × 16,977.42
  4. Step 4: Simplify right side
    31,317.35x = 733,731,410.87
  5. Step 5: Solve for x
    x = 733,731,410.87/31,317.35
  6. Step 6: Final answer
    x = 23,428.91

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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.