Home / 31,208.35-46,815.10-10,147.91

Finding the Fourth Proportional to 31,208.35, 46,815.10 and 10,147.91

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Solution

The fourth proportional to 31,208.35, 46,815.10 and 10,147.91 is: 15,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208.35 : 46,815.10 = 10,147.91 : x
  2. Step 2: Convert to fraction form
    31,208.35/46,815.10 = 10,147.91/x
  3. Step 3: Cross multiply
    31,208.35x = 46,815.10 × 10,147.91
  4. Step 4: Simplify right side
    31,208.35x = 475,075,304.37
  5. Step 5: Solve for x
    x = 475,075,304.37/31,208.35
  6. Step 6: Final answer
    x = 15,222.70

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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.