Home / 20,878.08-31,327.26-10,349.04

Finding the Fourth Proportional to 20,878.08, 31,327.26 and 10,349.04

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Solution

The fourth proportional to 20,878.08, 31,327.26 and 10,349.04 is: 15,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,878.08 : 31,327.26 = 10,349.04 : x
  2. Step 2: Convert to fraction form
    20,878.08/31,327.26 = 10,349.04/x
  3. Step 3: Cross multiply
    20,878.08x = 31,327.26 × 10,349.04
  4. Step 4: Simplify right side
    20,878.08x = 324,207,066.83
  5. Step 5: Solve for x
    x = 324,207,066.83/20,878.08
  6. Step 6: Final answer
    x = 15,528.59

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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.