Home / 27,765.74-41,636.09-13,720.29

Finding the Fourth Proportional to 27,765.74, 41,636.09 and 13,720.29

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Solution

The fourth proportional to 27,765.74, 41,636.09 and 13,720.29 is: 20,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.74 : 41,636.09 = 13,720.29 : x
  2. Step 2: Convert to fraction form
    27,765.74/41,636.09 = 13,720.29/x
  3. Step 3: Cross multiply
    27,765.74x = 41,636.09 × 13,720.29
  4. Step 4: Simplify right side
    27,765.74x = 571,259,341.63
  5. Step 5: Solve for x
    x = 571,259,341.63/27,765.74
  6. Step 6: Final answer
    x = 20,574.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.