Home / 20,886.42-31,274.21-16,338.15

Finding the Fourth Proportional to 20,886.42, 31,274.21 and 16,338.15

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Solution

The fourth proportional to 20,886.42, 31,274.21 and 16,338.15 is: 24,463.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.42 : 31,274.21 = 16,338.15 : x
  2. Step 2: Convert to fraction form
    20,886.42/31,274.21 = 16,338.15/x
  3. Step 3: Cross multiply
    20,886.42x = 31,274.21 × 16,338.15
  4. Step 4: Simplify right side
    20,886.42x = 510,962,652.42
  5. Step 5: Solve for x
    x = 510,962,652.42/20,886.42
  6. Step 6: Final answer
    x = 24,463.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.