Home / 31,460.36-47,195.40-10,679

Finding the Fourth Proportional to 31,460.36, 47,195.40 and 10,679

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Solution

The fourth proportional to 31,460.36, 47,195.40 and 10,679 is: 16,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,460.36 : 47,195.40 = 10,679 : x
  2. Step 2: Convert to fraction form
    31,460.36/47,195.40 = 10,679/x
  3. Step 3: Cross multiply
    31,460.36x = 47,195.40 × 10,679
  4. Step 4: Simplify right side
    31,460.36x = 503,999,676.60
  5. Step 5: Solve for x
    x = 503,999,676.60/31,460.36
  6. Step 6: Final answer
    x = 16,020.15

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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.