Home / 20,860.92-31,284.90-6,070.86

Finding the Fourth Proportional to 20,860.92, 31,284.90 and 6,070.86

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Solution

The fourth proportional to 20,860.92, 31,284.90 and 6,070.86 is: 9,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.92 : 31,284.90 = 6,070.86 : x
  2. Step 2: Convert to fraction form
    20,860.92/31,284.90 = 6,070.86/x
  3. Step 3: Cross multiply
    20,860.92x = 31,284.90 × 6,070.86
  4. Step 4: Simplify right side
    20,860.92x = 189,926,248.01
  5. Step 5: Solve for x
    x = 189,926,248.01/20,860.92
  6. Step 6: Final answer
    x = 9,104.40

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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.