Home / 31,527.12-43,509.33-17,379.90

Finding the Fourth Proportional to 31,527.12, 43,509.33 and 17,379.90

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Solution

The fourth proportional to 31,527.12, 43,509.33 and 17,379.90 is: 23,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,527.12 : 43,509.33 = 17,379.90 : x
  2. Step 2: Convert to fraction form
    31,527.12/43,509.33 = 17,379.90/x
  3. Step 3: Cross multiply
    31,527.12x = 43,509.33 × 17,379.90
  4. Step 4: Simplify right side
    31,527.12x = 756,187,804.47
  5. Step 5: Solve for x
    x = 756,187,804.47/31,527.12
  6. Step 6: Final answer
    x = 23,985.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.