Home / 31,176.26-46,748-21,318.36

Finding the Fourth Proportional to 31,176.26, 46,748 and 21,318.36

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Solution

The fourth proportional to 31,176.26, 46,748 and 21,318.36 is: 31,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,176.26 : 46,748 = 21,318.36 : x
  2. Step 2: Convert to fraction form
    31,176.26/46,748 = 21,318.36/x
  3. Step 3: Cross multiply
    31,176.26x = 46,748 × 21,318.36
  4. Step 4: Simplify right side
    31,176.26x = 996,590,693.28
  5. Step 5: Solve for x
    x = 996,590,693.28/31,176.26
  6. Step 6: Final answer
    x = 31,966.33

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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.