Home / 20,436.01-30,637.31-10,578.11

Finding the Fourth Proportional to 20,436.01, 30,637.31 and 10,578.11

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Solution

The fourth proportional to 20,436.01, 30,637.31 and 10,578.11 is: 15,858.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,436.01 : 30,637.31 = 10,578.11 : x
  2. Step 2: Convert to fraction form
    20,436.01/30,637.31 = 10,578.11/x
  3. Step 3: Cross multiply
    20,436.01x = 30,637.31 × 10,578.11
  4. Step 4: Simplify right side
    20,436.01x = 324,084,629.21
  5. Step 5: Solve for x
    x = 324,084,629.21/20,436.01
  6. Step 6: Final answer
    x = 15,858.51

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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.