Home / 31,141.97-46,690.32-12,416.39

Finding the Fourth Proportional to 31,141.97, 46,690.32 and 12,416.39

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Solution

The fourth proportional to 31,141.97, 46,690.32 and 12,416.39 is: 18,615.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,141.97 : 46,690.32 = 12,416.39 : x
  2. Step 2: Convert to fraction form
    31,141.97/46,690.32 = 12,416.39/x
  3. Step 3: Cross multiply
    31,141.97x = 46,690.32 × 12,416.39
  4. Step 4: Simplify right side
    31,141.97x = 579,724,988.89
  5. Step 5: Solve for x
    x = 579,724,988.89/31,141.97
  6. Step 6: Final answer
    x = 18,615.56

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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.