Home / 20,582.28-30,870.18-6,540.46

Finding the Fourth Proportional to 20,582.28, 30,870.18 and 6,540.46

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Solution

The fourth proportional to 20,582.28, 30,870.18 and 6,540.46 is: 9,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.28 : 30,870.18 = 6,540.46 : x
  2. Step 2: Convert to fraction form
    20,582.28/30,870.18 = 6,540.46/x
  3. Step 3: Cross multiply
    20,582.28x = 30,870.18 × 6,540.46
  4. Step 4: Simplify right side
    20,582.28x = 201,905,177.48
  5. Step 5: Solve for x
    x = 201,905,177.48/20,582.28
  6. Step 6: Final answer
    x = 9,809.66

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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.