Home / 31,486.11-43,450.47-17,338.65

Finding the Fourth Proportional to 31,486.11, 43,450.47 and 17,338.65

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Solution

The fourth proportional to 31,486.11, 43,450.47 and 17,338.65 is: 23,927.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,486.11 : 43,450.47 = 17,338.65 : x
  2. Step 2: Convert to fraction form
    31,486.11/43,450.47 = 17,338.65/x
  3. Step 3: Cross multiply
    31,486.11x = 43,450.47 × 17,338.65
  4. Step 4: Simplify right side
    31,486.11x = 753,372,491.67
  5. Step 5: Solve for x
    x = 753,372,491.67/31,486.11
  6. Step 6: Final answer
    x = 23,927.14

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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.