Home / 20,528.64-28,322.56-12,029.41

Finding the Fourth Proportional to 20,528.64, 28,322.56 and 12,029.41

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Solution

The fourth proportional to 20,528.64, 28,322.56 and 12,029.41 is: 16,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.64 : 28,322.56 = 12,029.41 : x
  2. Step 2: Convert to fraction form
    20,528.64/28,322.56 = 12,029.41/x
  3. Step 3: Cross multiply
    20,528.64x = 28,322.56 × 12,029.41
  4. Step 4: Simplify right side
    20,528.64x = 340,703,736.93
  5. Step 5: Solve for x
    x = 340,703,736.93/20,528.64
  6. Step 6: Final answer
    x = 16,596.51

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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.