Home / 20,256.79-27,955.77-11,306.04

Finding the Fourth Proportional to 20,256.79, 27,955.77 and 11,306.04

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Solution

The fourth proportional to 20,256.79, 27,955.77 and 11,306.04 is: 15,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.79 : 27,955.77 = 11,306.04 : x
  2. Step 2: Convert to fraction form
    20,256.79/27,955.77 = 11,306.04/x
  3. Step 3: Cross multiply
    20,256.79x = 27,955.77 × 11,306.04
  4. Step 4: Simplify right side
    20,256.79x = 316,069,053.85
  5. Step 5: Solve for x
    x = 316,069,053.85/20,256.79
  6. Step 6: Final answer
    x = 15,603.12

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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.