Home / 20,259.45-27,955.28-11,305.81

Finding the Fourth Proportional to 20,259.45, 27,955.28 and 11,305.81

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Solution

The fourth proportional to 20,259.45, 27,955.28 and 11,305.81 is: 15,600.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.45 : 27,955.28 = 11,305.81 : x
  2. Step 2: Convert to fraction form
    20,259.45/27,955.28 = 11,305.81/x
  3. Step 3: Cross multiply
    20,259.45x = 27,955.28 × 11,305.81
  4. Step 4: Simplify right side
    20,259.45x = 316,057,083.79
  5. Step 5: Solve for x
    x = 316,057,083.79/20,259.45
  6. Step 6: Final answer
    x = 15,600.48

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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.