Home / 20,528.04-30,630.84-19,274.16

Finding the Fourth Proportional to 20,528.04, 30,630.84 and 19,274.16

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Solution

The fourth proportional to 20,528.04, 30,630.84 and 19,274.16 is: 28,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.04 : 30,630.84 = 19,274.16 : x
  2. Step 2: Convert to fraction form
    20,528.04/30,630.84 = 19,274.16/x
  3. Step 3: Cross multiply
    20,528.04x = 30,630.84 × 19,274.16
  4. Step 4: Simplify right side
    20,528.04x = 590,383,711.09
  5. Step 5: Solve for x
    x = 590,383,711.09/20,528.04
  6. Step 6: Final answer
    x = 28,759.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.