Home / 20,025.90-27,637.80-11,528.34

Finding the Fourth Proportional to 20,025.90, 27,637.80 and 11,528.34

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Solution

The fourth proportional to 20,025.90, 27,637.80 and 11,528.34 is: 15,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.90 : 27,637.80 = 11,528.34 : x
  2. Step 2: Convert to fraction form
    20,025.90/27,637.80 = 11,528.34/x
  3. Step 3: Cross multiply
    20,025.90x = 27,637.80 × 11,528.34
  4. Step 4: Simplify right side
    20,025.90x = 318,617,955.25
  5. Step 5: Solve for x
    x = 318,617,955.25/20,025.90
  6. Step 6: Final answer
    x = 15,910.29

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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.