Home / 31,278.48-46,917.72-7,904.91

Finding the Fourth Proportional to 31,278.48, 46,917.72 and 7,904.91

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Solution

The fourth proportional to 31,278.48, 46,917.72 and 7,904.91 is: 11,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.48 : 46,917.72 = 7,904.91 : x
  2. Step 2: Convert to fraction form
    31,278.48/46,917.72 = 7,904.91/x
  3. Step 3: Cross multiply
    31,278.48x = 46,917.72 × 7,904.91
  4. Step 4: Simplify right side
    31,278.48x = 370,880,354.01
  5. Step 5: Solve for x
    x = 370,880,354.01/31,278.48
  6. Step 6: Final answer
    x = 11,857.37

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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.