Home / 31,277.12-43,161.98-17,129.96

Finding the Fourth Proportional to 31,277.12, 43,161.98 and 17,129.96

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Solution

The fourth proportional to 31,277.12, 43,161.98 and 17,129.96 is: 23,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.12 : 43,161.98 = 17,129.96 : x
  2. Step 2: Convert to fraction form
    31,277.12/43,161.98 = 17,129.96/x
  3. Step 3: Cross multiply
    31,277.12x = 43,161.98 × 17,129.96
  4. Step 4: Simplify right side
    31,277.12x = 739,362,990.92
  5. Step 5: Solve for x
    x = 739,362,990.92/31,277.12
  6. Step 6: Final answer
    x = 23,639.10

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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.