Home / 20,031.71-27,644.76-11,535.03

Finding the Fourth Proportional to 20,031.71, 27,644.76 and 11,535.03

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Solution

The fourth proportional to 20,031.71, 27,644.76 and 11,535.03 is: 15,918.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.71 : 27,644.76 = 11,535.03 : x
  2. Step 2: Convert to fraction form
    20,031.71/27,644.76 = 11,535.03/x
  3. Step 3: Cross multiply
    20,031.71x = 27,644.76 × 11,535.03
  4. Step 4: Simplify right side
    20,031.71x = 318,883,135.94
  5. Step 5: Solve for x
    x = 318,883,135.94/20,031.71
  6. Step 6: Final answer
    x = 15,918.92

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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.