Home / 31,658.90-43,689.74-18,232.56

Finding the Fourth Proportional to 31,658.90, 43,689.74 and 18,232.56

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Solution

The fourth proportional to 31,658.90, 43,689.74 and 18,232.56 is: 25,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,658.90 : 43,689.74 = 18,232.56 : x
  2. Step 2: Convert to fraction form
    31,658.90/43,689.74 = 18,232.56/x
  3. Step 3: Cross multiply
    31,658.90x = 43,689.74 × 18,232.56
  4. Step 4: Simplify right side
    31,658.90x = 796,575,714.77
  5. Step 5: Solve for x
    x = 796,575,714.77/31,658.90
  6. Step 6: Final answer
    x = 25,161.20

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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.