Home / 20,885.88-28,827.54-14,182.68

Finding the Fourth Proportional to 20,885.88, 28,827.54 and 14,182.68

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Solution

The fourth proportional to 20,885.88, 28,827.54 and 14,182.68 is: 19,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885.88 : 28,827.54 = 14,182.68 : x
  2. Step 2: Convert to fraction form
    20,885.88/28,827.54 = 14,182.68/x
  3. Step 3: Cross multiply
    20,885.88x = 28,827.54 × 14,182.68
  4. Step 4: Simplify right side
    20,885.88x = 408,851,775.01
  5. Step 5: Solve for x
    x = 408,851,775.01/20,885.88
  6. Step 6: Final answer
    x = 19,575.51

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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.