Home / 20,031.31-27,617.74-13,224.25

Finding the Fourth Proportional to 20,031.31, 27,617.74 and 13,224.25

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Solution

The fourth proportional to 20,031.31, 27,617.74 and 13,224.25 is: 18,232.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.31 : 27,617.74 = 13,224.25 : x
  2. Step 2: Convert to fraction form
    20,031.31/27,617.74 = 13,224.25/x
  3. Step 3: Cross multiply
    20,031.31x = 27,617.74 × 13,224.25
  4. Step 4: Simplify right side
    20,031.31x = 365,223,898.20
  5. Step 5: Solve for x
    x = 365,223,898.20/20,031.31
  6. Step 6: Final answer
    x = 18,232.65

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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.