Home / 20,579.38-30,862.86-6,538.84

Finding the Fourth Proportional to 20,579.38, 30,862.86 and 6,538.84

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Solution

The fourth proportional to 20,579.38, 30,862.86 and 6,538.84 is: 9,806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.38 : 30,862.86 = 6,538.84 : x
  2. Step 2: Convert to fraction form
    20,579.38/30,862.86 = 6,538.84/x
  3. Step 3: Cross multiply
    20,579.38x = 30,862.86 × 6,538.84
  4. Step 4: Simplify right side
    20,579.38x = 201,807,303.48
  5. Step 5: Solve for x
    x = 201,807,303.48/20,579.38
  6. Step 6: Final answer
    x = 9,806.29

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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.