Home / 31,670.16-43,704.54-18,922.65

Finding the Fourth Proportional to 31,670.16, 43,704.54 and 18,922.65

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Solution

The fourth proportional to 31,670.16, 43,704.54 and 18,922.65 is: 26,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,670.16 : 43,704.54 = 18,922.65 : x
  2. Step 2: Convert to fraction form
    31,670.16/43,704.54 = 18,922.65/x
  3. Step 3: Cross multiply
    31,670.16x = 43,704.54 × 18,922.65
  4. Step 4: Simplify right side
    31,670.16x = 827,005,713.83
  5. Step 5: Solve for x
    x = 827,005,713.83/31,670.16
  6. Step 6: Final answer
    x = 26,113.09

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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.