Home / 20,331.56-30,473.04-11,554.40

Finding the Fourth Proportional to 20,331.56, 30,473.04 and 11,554.40

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Solution

The fourth proportional to 20,331.56, 30,473.04 and 11,554.40 is: 17,317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.56 : 30,473.04 = 11,554.40 : x
  2. Step 2: Convert to fraction form
    20,331.56/30,473.04 = 11,554.40/x
  3. Step 3: Cross multiply
    20,331.56x = 30,473.04 × 11,554.40
  4. Step 4: Simplify right side
    20,331.56x = 352,097,693.38
  5. Step 5: Solve for x
    x = 352,097,693.38/20,331.56
  6. Step 6: Final answer
    x = 17,317.79

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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.