Home / 31,405.56-47,090.58-10,339.92

Finding the Fourth Proportional to 31,405.56, 47,090.58 and 10,339.92

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Solution

The fourth proportional to 31,405.56, 47,090.58 and 10,339.92 is: 15,504.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.56 : 47,090.58 = 10,339.92 : x
  2. Step 2: Convert to fraction form
    31,405.56/47,090.58 = 10,339.92/x
  3. Step 3: Cross multiply
    31,405.56x = 47,090.58 × 10,339.92
  4. Step 4: Simplify right side
    31,405.56x = 486,912,829.95
  5. Step 5: Solve for x
    x = 486,912,829.95/31,405.56
  6. Step 6: Final answer
    x = 15,504.03

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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.