Home / 20,435.52-30,646.32-7,954.56

Finding the Fourth Proportional to 20,435.52, 30,646.32 and 7,954.56

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Solution

The fourth proportional to 20,435.52, 30,646.32 and 7,954.56 is: 11,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.52 : 30,646.32 = 7,954.56 : x
  2. Step 2: Convert to fraction form
    20,435.52/30,646.32 = 7,954.56/x
  3. Step 3: Cross multiply
    20,435.52x = 30,646.32 × 7,954.56
  4. Step 4: Simplify right side
    20,435.52x = 243,777,991.22
  5. Step 5: Solve for x
    x = 243,777,991.22/20,435.52
  6. Step 6: Final answer
    x = 11,929.13

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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.