Home / 18,838.04-28,261.68-13,302.20

Finding the Fourth Proportional to 18,838.04, 28,261.68 and 13,302.20

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Solution

The fourth proportional to 18,838.04, 28,261.68 and 13,302.20 is: 19,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.04 : 28,261.68 = 13,302.20 : x
  2. Step 2: Convert to fraction form
    18,838.04/28,261.68 = 13,302.20/x
  3. Step 3: Cross multiply
    18,838.04x = 28,261.68 × 13,302.20
  4. Step 4: Simplify right side
    18,838.04x = 375,942,519.70
  5. Step 5: Solve for x
    x = 375,942,519.70/18,838.04
  6. Step 6: Final answer
    x = 19,956.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.