Home / 31,749.08-47,628.48-8,377.36

Finding the Fourth Proportional to 31,749.08, 47,628.48 and 8,377.36

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Solution

The fourth proportional to 31,749.08, 47,628.48 and 8,377.36 is: 12,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.08 : 47,628.48 = 8,377.36 : x
  2. Step 2: Convert to fraction form
    31,749.08/47,628.48 = 8,377.36/x
  3. Step 3: Cross multiply
    31,749.08x = 47,628.48 × 8,377.36
  4. Step 4: Simplify right side
    31,749.08x = 399,000,923.21
  5. Step 5: Solve for x
    x = 399,000,923.21/31,749.08
  6. Step 6: Final answer
    x = 12,567.32

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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.