Home / 31,889.60-47,808.48-11,127.68

Finding the Fourth Proportional to 31,889.60, 47,808.48 and 11,127.68

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Solution

The fourth proportional to 31,889.60, 47,808.48 and 11,127.68 is: 16,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,889.60 : 47,808.48 = 11,127.68 : x
  2. Step 2: Convert to fraction form
    31,889.60/47,808.48 = 11,127.68/x
  3. Step 3: Cross multiply
    31,889.60x = 47,808.48 × 11,127.68
  4. Step 4: Simplify right side
    31,889.60x = 531,997,466.73
  5. Step 5: Solve for x
    x = 531,997,466.73/31,889.60
  6. Step 6: Final answer
    x = 16,682.48

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1.5x scale

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.