Home / 25,568.40-38,358.96-20,323.20

Finding the Fourth Proportional to 25,568.40, 38,358.96 and 20,323.20

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Solution

The fourth proportional to 25,568.40, 38,358.96 and 20,323.20 is: 30,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,568.40 : 38,358.96 = 20,323.20 : x
  2. Step 2: Convert to fraction form
    25,568.40/38,358.96 = 20,323.20/x
  3. Step 3: Cross multiply
    25,568.40x = 38,358.96 × 20,323.20
  4. Step 4: Simplify right side
    25,568.40x = 779,576,815.87
  5. Step 5: Solve for x
    x = 779,576,815.87/25,568.40
  6. Step 6: Final answer
    x = 30,489.86

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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.