Home / 20,435.72-30,653.58-5,646.74

Finding the Fourth Proportional to 20,435.72, 30,653.58 and 5,646.74

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Solution

The fourth proportional to 20,435.72, 30,653.58 and 5,646.74 is: 8,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.72 : 30,653.58 = 5,646.74 : x
  2. Step 2: Convert to fraction form
    20,435.72/30,653.58 = 5,646.74/x
  3. Step 3: Cross multiply
    20,435.72x = 30,653.58 × 5,646.74
  4. Step 4: Simplify right side
    20,435.72x = 173,092,796.33
  5. Step 5: Solve for x
    x = 173,092,796.33/20,435.72
  6. Step 6: Final answer
    x = 8,470.11

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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.