Home / 20,256.68-27,955.62-11,305.95

Finding the Fourth Proportional to 20,256.68, 27,955.62 and 11,305.95

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Solution

The fourth proportional to 20,256.68, 27,955.62 and 11,305.95 is: 15,603.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.68 : 27,955.62 = 11,305.95 : x
  2. Step 2: Convert to fraction form
    20,256.68/27,955.62 = 11,305.95/x
  3. Step 3: Cross multiply
    20,256.68x = 27,955.62 × 11,305.95
  4. Step 4: Simplify right side
    20,256.68x = 316,064,841.94
  5. Step 5: Solve for x
    x = 316,064,841.94/20,256.68
  6. Step 6: Final answer
    x = 15,603.00

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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.