Home / 20,878.88-31,321.22-6,088.86

Finding the Fourth Proportional to 20,878.88, 31,321.22 and 6,088.86

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Solution

The fourth proportional to 20,878.88, 31,321.22 and 6,088.86 is: 9,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,878.88 : 31,321.22 = 6,088.86 : x
  2. Step 2: Convert to fraction form
    20,878.88/31,321.22 = 6,088.86/x
  3. Step 3: Cross multiply
    20,878.88x = 31,321.22 × 6,088.86
  4. Step 4: Simplify right side
    20,878.88x = 190,710,493.16
  5. Step 5: Solve for x
    x = 190,710,493.16/20,878.88
  6. Step 6: Final answer
    x = 9,134.14

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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.