Home / 30,382.08-41,930.88-18,447.36

Finding the Fourth Proportional to 30,382.08, 41,930.88 and 18,447.36

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Solution

The fourth proportional to 30,382.08, 41,930.88 and 18,447.36 is: 25,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.08 : 41,930.88 = 18,447.36 : x
  2. Step 2: Convert to fraction form
    30,382.08/41,930.88 = 18,447.36/x
  3. Step 3: Cross multiply
    30,382.08x = 41,930.88 × 18,447.36
  4. Step 4: Simplify right side
    30,382.08x = 773,514,038.48
  5. Step 5: Solve for x
    x = 773,514,038.48/30,382.08
  6. Step 6: Final answer
    x = 25,459.55

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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.