Home / 20,027.98-27,606.76-15,772.29

Finding the Fourth Proportional to 20,027.98, 27,606.76 and 15,772.29

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Solution

The fourth proportional to 20,027.98, 27,606.76 and 15,772.29 is: 21,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.98 : 27,606.76 = 15,772.29 : x
  2. Step 2: Convert to fraction form
    20,027.98/27,606.76 = 15,772.29/x
  3. Step 3: Cross multiply
    20,027.98x = 27,606.76 × 15,772.29
  4. Step 4: Simplify right side
    20,027.98x = 435,421,824.68
  5. Step 5: Solve for x
    x = 435,421,824.68/20,027.98
  6. Step 6: Final answer
    x = 21,740.68

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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.