Home / 31,239.88-46,871.40-14,605.32

Finding the Fourth Proportional to 31,239.88, 46,871.40 and 14,605.32

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Solution

The fourth proportional to 31,239.88, 46,871.40 and 14,605.32 is: 21,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,239.88 : 46,871.40 = 14,605.32 : x
  2. Step 2: Convert to fraction form
    31,239.88/46,871.40 = 14,605.32/x
  3. Step 3: Cross multiply
    31,239.88x = 46,871.40 × 14,605.32
  4. Step 4: Simplify right side
    31,239.88x = 684,571,795.85
  5. Step 5: Solve for x
    x = 684,571,795.85/31,239.88
  6. Step 6: Final answer
    x = 21,913.39

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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.