Home / 20,655.95-28,504.04-11,224.44

Finding the Fourth Proportional to 20,655.95, 28,504.04 and 11,224.44

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Solution

The fourth proportional to 20,655.95, 28,504.04 and 11,224.44 is: 15,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.95 : 28,504.04 = 11,224.44 : x
  2. Step 2: Convert to fraction form
    20,655.95/28,504.04 = 11,224.44/x
  3. Step 3: Cross multiply
    20,655.95x = 28,504.04 × 11,224.44
  4. Step 4: Simplify right side
    20,655.95x = 319,941,830.62
  5. Step 5: Solve for x
    x = 319,941,830.62/20,655.95
  6. Step 6: Final answer
    x = 15,489.09

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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.