Home / 31,212.72-46,834.20-28,646.64

Finding the Fourth Proportional to 31,212.72, 46,834.20 and 28,646.64

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Solution

The fourth proportional to 31,212.72, 46,834.20 and 28,646.64 is: 42,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.72 : 46,834.20 = 28,646.64 : x
  2. Step 2: Convert to fraction form
    31,212.72/46,834.20 = 28,646.64/x
  3. Step 3: Cross multiply
    31,212.72x = 46,834.20 × 28,646.64
  4. Step 4: Simplify right side
    31,212.72x = 1,341,642,467.09
  5. Step 5: Solve for x
    x = 1,341,642,467.09/31,212.72
  6. Step 6: Final answer
    x = 42,983.84

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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.