Home / 20,951.36-31,404.48-9,848.64

Finding the Fourth Proportional to 20,951.36, 31,404.48 and 9,848.64

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Solution

The fourth proportional to 20,951.36, 31,404.48 and 9,848.64 is: 14,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.36 : 31,404.48 = 9,848.64 : x
  2. Step 2: Convert to fraction form
    20,951.36/31,404.48 = 9,848.64/x
  3. Step 3: Cross multiply
    20,951.36x = 31,404.48 × 9,848.64
  4. Step 4: Simplify right side
    20,951.36x = 309,291,417.91
  5. Step 5: Solve for x
    x = 309,291,417.91/20,951.36
  6. Step 6: Final answer
    x = 14,762.36

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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.