Home / 31,108.78-46,663.16-7,735.22

Finding the Fourth Proportional to 31,108.78, 46,663.16 and 7,735.22

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Solution

The fourth proportional to 31,108.78, 46,663.16 and 7,735.22 is: 11,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108.78 : 46,663.16 = 7,735.22 : x
  2. Step 2: Convert to fraction form
    31,108.78/46,663.16 = 7,735.22/x
  3. Step 3: Cross multiply
    31,108.78x = 46,663.16 × 7,735.22
  4. Step 4: Simplify right side
    31,108.78x = 360,949,536.50
  5. Step 5: Solve for x
    x = 360,949,536.50/31,108.78
  6. Step 6: Final answer
    x = 11,602.82

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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.