Home / 20,523.43-28,322.58-11,570.95

Finding the Fourth Proportional to 20,523.43, 28,322.58 and 11,570.95

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Solution

The fourth proportional to 20,523.43, 28,322.58 and 11,570.95 is: 15,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.43 : 28,322.58 = 11,570.95 : x
  2. Step 2: Convert to fraction form
    20,523.43/28,322.58 = 11,570.95/x
  3. Step 3: Cross multiply
    20,523.43x = 28,322.58 × 11,570.95
  4. Step 4: Simplify right side
    20,523.43x = 327,719,157.05
  5. Step 5: Solve for x
    x = 327,719,157.05/20,523.43
  6. Step 6: Final answer
    x = 15,968.05

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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.