Home / 31,159.13-46,738.77-12,440.69

Finding the Fourth Proportional to 31,159.13, 46,738.77 and 12,440.69

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Solution

The fourth proportional to 31,159.13, 46,738.77 and 12,440.69 is: 18,661.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.13 : 46,738.77 = 12,440.69 : x
  2. Step 2: Convert to fraction form
    31,159.13/46,738.77 = 12,440.69/x
  3. Step 3: Cross multiply
    31,159.13x = 46,738.77 × 12,440.69
  4. Step 4: Simplify right side
    31,159.13x = 581,462,513.45
  5. Step 5: Solve for x
    x = 581,462,513.45/31,159.13
  6. Step 6: Final answer
    x = 18,661.06

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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.