Home / 20,338.08-28,082.88-16,346.40

Finding the Fourth Proportional to 20,338.08, 28,082.88 and 16,346.40

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Solution

The fourth proportional to 20,338.08, 28,082.88 and 16,346.40 is: 22,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.08 : 28,082.88 = 16,346.40 : x
  2. Step 2: Convert to fraction form
    20,338.08/28,082.88 = 16,346.40/x
  3. Step 3: Cross multiply
    20,338.08x = 28,082.88 × 16,346.40
  4. Step 4: Simplify right side
    20,338.08x = 459,053,989.63
  5. Step 5: Solve for x
    x = 459,053,989.63/20,338.08
  6. Step 6: Final answer
    x = 22,571.16

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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.