Home / 20,223.36-30,389.76-19,082.88

Finding the Fourth Proportional to 20,223.36, 30,389.76 and 19,082.88

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Solution

The fourth proportional to 20,223.36, 30,389.76 and 19,082.88 is: 28,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.36 : 30,389.76 = 19,082.88 : x
  2. Step 2: Convert to fraction form
    20,223.36/30,389.76 = 19,082.88/x
  3. Step 3: Cross multiply
    20,223.36x = 30,389.76 × 19,082.88
  4. Step 4: Simplify right side
    20,223.36x = 579,924,143.31
  5. Step 5: Solve for x
    x = 579,924,143.31/20,223.36
  6. Step 6: Final answer
    x = 28,675.95

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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.