Home / 31,411.08-43,391.37-28,573.44

Finding the Fourth Proportional to 31,411.08, 43,391.37 and 28,573.44

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Solution

The fourth proportional to 31,411.08, 43,391.37 and 28,573.44 is: 39,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,411.08 : 43,391.37 = 28,573.44 : x
  2. Step 2: Convert to fraction form
    31,411.08/43,391.37 = 28,573.44/x
  3. Step 3: Cross multiply
    31,411.08x = 43,391.37 × 28,573.44
  4. Step 4: Simplify right side
    31,411.08x = 1,239,840,707.21
  5. Step 5: Solve for x
    x = 1,239,840,707.21/31,411.08
  6. Step 6: Final answer
    x = 39,471.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.