Home / 20,479.41-28,261.49-11,526.89

Finding the Fourth Proportional to 20,479.41, 28,261.49 and 11,526.89

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Solution

The fourth proportional to 20,479.41, 28,261.49 and 11,526.89 is: 15,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479.41 : 28,261.49 = 11,526.89 : x
  2. Step 2: Convert to fraction form
    20,479.41/28,261.49 = 11,526.89/x
  3. Step 3: Cross multiply
    20,479.41x = 28,261.49 × 11,526.89
  4. Step 4: Simplify right side
    20,479.41x = 325,766,887.52
  5. Step 5: Solve for x
    x = 325,766,887.52/20,479.41
  6. Step 6: Final answer
    x = 15,907.04

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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.