Home / 28,139.04-38,834.64-16,202.88

Finding the Fourth Proportional to 28,139.04, 38,834.64 and 16,202.88

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Solution

The fourth proportional to 28,139.04, 38,834.64 and 16,202.88 is: 22,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.04 : 38,834.64 = 16,202.88 : x
  2. Step 2: Convert to fraction form
    28,139.04/38,834.64 = 16,202.88/x
  3. Step 3: Cross multiply
    28,139.04x = 38,834.64 × 16,202.88
  4. Step 4: Simplify right side
    28,139.04x = 629,233,011.76
  5. Step 5: Solve for x
    x = 629,233,011.76/28,139.04
  6. Step 6: Final answer
    x = 22,361.57

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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.