Home / 31,412.64-47,118.96-10,650.72

Finding the Fourth Proportional to 31,412.64, 47,118.96 and 10,650.72

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Solution

The fourth proportional to 31,412.64, 47,118.96 and 10,650.72 is: 15,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,412.64 : 47,118.96 = 10,650.72 : x
  2. Step 2: Convert to fraction form
    31,412.64/47,118.96 = 10,650.72/x
  3. Step 3: Cross multiply
    31,412.64x = 47,118.96 × 10,650.72
  4. Step 4: Simplify right side
    31,412.64x = 501,850,849.65
  5. Step 5: Solve for x
    x = 501,850,849.65/31,412.64
  6. Step 6: Final answer
    x = 15,976.08

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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.