Home / 31,372.77-47,055.72-9,186.37

Finding the Fourth Proportional to 31,372.77, 47,055.72 and 9,186.37

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Solution

The fourth proportional to 31,372.77, 47,055.72 and 9,186.37 is: 13,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.77 : 47,055.72 = 9,186.37 : x
  2. Step 2: Convert to fraction form
    31,372.77/47,055.72 = 9,186.37/x
  3. Step 3: Cross multiply
    31,372.77x = 47,055.72 × 9,186.37
  4. Step 4: Simplify right side
    31,372.77x = 432,271,119.67
  5. Step 5: Solve for x
    x = 432,271,119.67/31,372.77
  6. Step 6: Final answer
    x = 13,778.54

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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.