Home / 20,389.44-30,534.76-10,367.82

Finding the Fourth Proportional to 20,389.44, 30,534.76 and 10,367.82

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Solution

The fourth proportional to 20,389.44, 30,534.76 and 10,367.82 is: 15,526.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.44 : 30,534.76 = 10,367.82 : x
  2. Step 2: Convert to fraction form
    20,389.44/30,534.76 = 10,367.82/x
  3. Step 3: Cross multiply
    20,389.44x = 30,534.76 × 10,367.82
  4. Step 4: Simplify right side
    20,389.44x = 316,578,895.42
  5. Step 5: Solve for x
    x = 316,578,895.42/20,389.44
  6. Step 6: Final answer
    x = 15,526.61

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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.