Home / 20,465.76-28,120.36-16,266.72

Finding the Fourth Proportional to 20,465.76, 28,120.36 and 16,266.72

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Solution

The fourth proportional to 20,465.76, 28,120.36 and 16,266.72 is: 22,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465.76 : 28,120.36 = 16,266.72 : x
  2. Step 2: Convert to fraction form
    20,465.76/28,120.36 = 16,266.72/x
  3. Step 3: Cross multiply
    20,465.76x = 28,120.36 × 16,266.72
  4. Step 4: Simplify right side
    20,465.76x = 457,426,022.42
  5. Step 5: Solve for x
    x = 457,426,022.42/20,465.76
  6. Step 6: Final answer
    x = 22,350.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.