Home / 28,211.86-38,930.92-16,274.49

Finding the Fourth Proportional to 28,211.86, 38,930.92 and 16,274.49

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Solution

The fourth proportional to 28,211.86, 38,930.92 and 16,274.49 is: 22,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.86 : 38,930.92 = 16,274.49 : x
  2. Step 2: Convert to fraction form
    28,211.86/38,930.92 = 16,274.49/x
  3. Step 3: Cross multiply
    28,211.86x = 38,930.92 × 16,274.49
  4. Step 4: Simplify right side
    28,211.86x = 633,580,592.20
  5. Step 5: Solve for x
    x = 633,580,592.20/28,211.86
  6. Step 6: Final answer
    x = 22,457.95

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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.