Home / 31,121.88-46,688.74-11,401.52

Finding the Fourth Proportional to 31,121.88, 46,688.74 and 11,401.52

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Solution

The fourth proportional to 31,121.88, 46,688.74 and 11,401.52 is: 17,104.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.88 : 46,688.74 = 11,401.52 : x
  2. Step 2: Convert to fraction form
    31,121.88/46,688.74 = 11,401.52/x
  3. Step 3: Cross multiply
    31,121.88x = 46,688.74 × 11,401.52
  4. Step 4: Simplify right side
    31,121.88x = 532,322,602.88
  5. Step 5: Solve for x
    x = 532,322,602.88/31,121.88
  6. Step 6: Final answer
    x = 17,104.45

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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.