Home / 20,575.95-28,393.90-11,623.42

Finding the Fourth Proportional to 20,575.95, 28,393.90 and 11,623.42

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Solution

The fourth proportional to 20,575.95, 28,393.90 and 11,623.42 is: 16,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.95 : 28,393.90 = 11,623.42 : x
  2. Step 2: Convert to fraction form
    20,575.95/28,393.90 = 11,623.42/x
  3. Step 3: Cross multiply
    20,575.95x = 28,393.90 × 11,623.42
  4. Step 4: Simplify right side
    20,575.95x = 330,034,225.14
  5. Step 5: Solve for x
    x = 330,034,225.14/20,575.95
  6. Step 6: Final answer
    x = 16,039.80

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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.