Home / 20,828.16-31,197.96-16,432.56

Finding the Fourth Proportional to 20,828.16, 31,197.96 and 16,432.56

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Solution

The fourth proportional to 20,828.16, 31,197.96 and 16,432.56 is: 24,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828.16 : 31,197.96 = 16,432.56 : x
  2. Step 2: Convert to fraction form
    20,828.16/31,197.96 = 16,432.56/x
  3. Step 3: Cross multiply
    20,828.16x = 31,197.96 × 16,432.56
  4. Step 4: Simplify right side
    20,828.16x = 512,662,349.58
  5. Step 5: Solve for x
    x = 512,662,349.58/20,828.16
  6. Step 6: Final answer
    x = 24,613.90

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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.