Home / 20,030.31-27,616.37-13,223.25

Finding the Fourth Proportional to 20,030.31, 27,616.37 and 13,223.25

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Solution

The fourth proportional to 20,030.31, 27,616.37 and 13,223.25 is: 18,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.31 : 27,616.37 = 13,223.25 : x
  2. Step 2: Convert to fraction form
    20,030.31/27,616.37 = 13,223.25/x
  3. Step 3: Cross multiply
    20,030.31x = 27,616.37 × 13,223.25
  4. Step 4: Simplify right side
    20,030.31x = 365,178,098.49
  5. Step 5: Solve for x
    x = 365,178,098.49/20,030.31
  6. Step 6: Final answer
    x = 18,231.28

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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.