Home / 31,102.76-46,640.10-8,911.06

Finding the Fourth Proportional to 31,102.76, 46,640.10 and 8,911.06

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Solution

The fourth proportional to 31,102.76, 46,640.10 and 8,911.06 is: 13,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,102.76 : 46,640.10 = 8,911.06 : x
  2. Step 2: Convert to fraction form
    31,102.76/46,640.10 = 8,911.06/x
  3. Step 3: Cross multiply
    31,102.76x = 46,640.10 × 8,911.06
  4. Step 4: Simplify right side
    31,102.76x = 415,612,646.32
  5. Step 5: Solve for x
    x = 415,612,646.32/31,102.76
  6. Step 6: Final answer
    x = 13,362.56

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1.5x scale

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.