Home / 20,475.39-30,713.47-6,435.16

Finding the Fourth Proportional to 20,475.39, 30,713.47 and 6,435.16

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Solution

The fourth proportional to 20,475.39, 30,713.47 and 6,435.16 is: 9,652.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.39 : 30,713.47 = 6,435.16 : x
  2. Step 2: Convert to fraction form
    20,475.39/30,713.47 = 6,435.16/x
  3. Step 3: Cross multiply
    20,475.39x = 30,713.47 × 6,435.16
  4. Step 4: Simplify right side
    20,475.39x = 197,646,093.61
  5. Step 5: Solve for x
    x = 197,646,093.61/20,475.39
  6. Step 6: Final answer
    x = 9,652.86

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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.