Home / 31,153.91-46,703.07-11,427.89

Finding the Fourth Proportional to 31,153.91, 46,703.07 and 11,427.89

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Solution

The fourth proportional to 31,153.91, 46,703.07 and 11,427.89 is: 17,131.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,153.91 : 46,703.07 = 11,427.89 : x
  2. Step 2: Convert to fraction form
    31,153.91/46,703.07 = 11,427.89/x
  3. Step 3: Cross multiply
    31,153.91x = 46,703.07 × 11,427.89
  4. Step 4: Simplify right side
    31,153.91x = 533,717,313.11
  5. Step 5: Solve for x
    x = 533,717,313.11/31,153.91
  6. Step 6: Final answer
    x = 17,131.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.