Home / 30,231.69-45,331.98-13,577.43

Finding the Fourth Proportional to 30,231.69, 45,331.98 and 13,577.43

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Solution

The fourth proportional to 30,231.69, 45,331.98 and 13,577.43 is: 20,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,231.69 : 45,331.98 = 13,577.43 : x
  2. Step 2: Convert to fraction form
    30,231.69/45,331.98 = 13,577.43/x
  3. Step 3: Cross multiply
    30,231.69x = 45,331.98 × 13,577.43
  4. Step 4: Simplify right side
    30,231.69x = 615,491,618.89
  5. Step 5: Solve for x
    x = 615,491,618.89/30,231.69
  6. Step 6: Final answer
    x = 20,359.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.