Home / 20,492.03-28,278.72-11,540.41

Finding the Fourth Proportional to 20,492.03, 28,278.72 and 11,540.41

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Solution

The fourth proportional to 20,492.03, 28,278.72 and 11,540.41 is: 15,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,492.03 : 28,278.72 = 11,540.41 : x
  2. Step 2: Convert to fraction form
    20,492.03/28,278.72 = 11,540.41/x
  3. Step 3: Cross multiply
    20,492.03x = 28,278.72 × 11,540.41
  4. Step 4: Simplify right side
    20,492.03x = 326,347,952.38
  5. Step 5: Solve for x
    x = 326,347,952.38/20,492.03
  6. Step 6: Final answer
    x = 15,925.60

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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.