Home / 20,575.64-30,858.60-9,475.40

Finding the Fourth Proportional to 20,575.64, 30,858.60 and 9,475.40

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Solution

The fourth proportional to 20,575.64, 30,858.60 and 9,475.40 is: 14,210.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.64 : 30,858.60 = 9,475.40 : x
  2. Step 2: Convert to fraction form
    20,575.64/30,858.60 = 9,475.40/x
  3. Step 3: Cross multiply
    20,575.64x = 30,858.60 × 9,475.40
  4. Step 4: Simplify right side
    20,575.64x = 292,397,578.44
  5. Step 5: Solve for x
    x = 292,397,578.44/20,575.64
  6. Step 6: Final answer
    x = 14,210.86

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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.