Home / 31,599.80-43,613.46-18,853.88

Finding the Fourth Proportional to 31,599.80, 43,613.46 and 18,853.88

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Solution

The fourth proportional to 31,599.80, 43,613.46 and 18,853.88 is: 26,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,599.80 : 43,613.46 = 18,853.88 : x
  2. Step 2: Convert to fraction form
    31,599.80/43,613.46 = 18,853.88/x
  3. Step 3: Cross multiply
    31,599.80x = 43,613.46 × 18,853.88
  4. Step 4: Simplify right side
    31,599.80x = 822,282,941.22
  5. Step 5: Solve for x
    x = 822,282,941.22/31,599.80
  6. Step 6: Final answer
    x = 26,021.78

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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.