Home / 20,162.40-27,823.31-11,209.25

Finding the Fourth Proportional to 20,162.40, 27,823.31 and 11,209.25

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Solution

The fourth proportional to 20,162.40, 27,823.31 and 11,209.25 is: 15,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.40 : 27,823.31 = 11,209.25 : x
  2. Step 2: Convert to fraction form
    20,162.40/27,823.31 = 11,209.25/x
  3. Step 3: Cross multiply
    20,162.40x = 27,823.31 × 11,209.25
  4. Step 4: Simplify right side
    20,162.40x = 311,878,399.71
  5. Step 5: Solve for x
    x = 311,878,399.71/20,162.40
  6. Step 6: Final answer
    x = 15,468.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.