Home / 20,243.58-30,355.65-11,476.14

Finding the Fourth Proportional to 20,243.58, 30,355.65 and 11,476.14

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Solution

The fourth proportional to 20,243.58, 30,355.65 and 11,476.14 is: 17,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.58 : 30,355.65 = 11,476.14 : x
  2. Step 2: Convert to fraction form
    20,243.58/30,355.65 = 11,476.14/x
  3. Step 3: Cross multiply
    20,243.58x = 30,355.65 × 11,476.14
  4. Step 4: Simplify right side
    20,243.58x = 348,365,689.19
  5. Step 5: Solve for x
    x = 348,365,689.19/20,243.58
  6. Step 6: Final answer
    x = 17,208.70

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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.