Home / 31,326.57-43,232.39-18,587.30

Finding the Fourth Proportional to 31,326.57, 43,232.39 and 18,587.30

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Solution

The fourth proportional to 31,326.57, 43,232.39 and 18,587.30 is: 25,651.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,326.57 : 43,232.39 = 18,587.30 : x
  2. Step 2: Convert to fraction form
    31,326.57/43,232.39 = 18,587.30/x
  3. Step 3: Cross multiply
    31,326.57x = 43,232.39 × 18,587.30
  4. Step 4: Simplify right side
    31,326.57x = 803,573,093.55
  5. Step 5: Solve for x
    x = 803,573,093.55/31,326.57
  6. Step 6: Final answer
    x = 25,651.49

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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.