Home / 20,259.36-27,957.84-11,306.88

Finding the Fourth Proportional to 20,259.36, 27,957.84 and 11,306.88

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Solution

The fourth proportional to 20,259.36, 27,957.84 and 11,306.88 is: 15,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.36 : 27,957.84 = 11,306.88 : x
  2. Step 2: Convert to fraction form
    20,259.36/27,957.84 = 11,306.88/x
  3. Step 3: Cross multiply
    20,259.36x = 27,957.84 × 11,306.88
  4. Step 4: Simplify right side
    20,259.36x = 316,115,941.94
  5. Step 5: Solve for x
    x = 316,115,941.94/20,259.36
  6. Step 6: Final answer
    x = 15,603.45

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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.