Home / 20,596.68-30,881.61-13,555.35

Finding the Fourth Proportional to 20,596.68, 30,881.61 and 13,555.35

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Solution

The fourth proportional to 20,596.68, 30,881.61 and 13,555.35 is: 20,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.68 : 30,881.61 = 13,555.35 : x
  2. Step 2: Convert to fraction form
    20,596.68/30,881.61 = 13,555.35/x
  3. Step 3: Cross multiply
    20,596.68x = 30,881.61 × 13,555.35
  4. Step 4: Simplify right side
    20,596.68x = 418,611,032.11
  5. Step 5: Solve for x
    x = 418,611,032.11/20,596.68
  6. Step 6: Final answer
    x = 20,324.20

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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.