Home / 20,634.94-28,476.28-11,203.50

Finding the Fourth Proportional to 20,634.94, 28,476.28 and 11,203.50

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Solution

The fourth proportional to 20,634.94, 28,476.28 and 11,203.50 is: 15,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.94 : 28,476.28 = 11,203.50 : x
  2. Step 2: Convert to fraction form
    20,634.94/28,476.28 = 11,203.50/x
  3. Step 3: Cross multiply
    20,634.94x = 28,476.28 × 11,203.50
  4. Step 4: Simplify right side
    20,634.94x = 319,034,002.98
  5. Step 5: Solve for x
    x = 319,034,002.98/20,634.94
  6. Step 6: Final answer
    x = 15,460.86

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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.