Home / 31,212.75-46,809.36-10,431.39

Finding the Fourth Proportional to 31,212.75, 46,809.36 and 10,431.39

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Solution

The fourth proportional to 31,212.75, 46,809.36 and 10,431.39 is: 15,643.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.75 : 46,809.36 = 10,431.39 : x
  2. Step 2: Convert to fraction form
    31,212.75/46,809.36 = 10,431.39/x
  3. Step 3: Cross multiply
    31,212.75x = 46,809.36 × 10,431.39
  4. Step 4: Simplify right side
    31,212.75x = 488,286,689.81
  5. Step 5: Solve for x
    x = 488,286,689.81/31,212.75
  6. Step 6: Final answer
    x = 15,643.82

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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.