Home / 20,860.62-31,295.56-6,070.70

Finding the Fourth Proportional to 20,860.62, 31,295.56 and 6,070.70

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Solution

The fourth proportional to 20,860.62, 31,295.56 and 6,070.70 is: 9,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.62 : 31,295.56 = 6,070.70 : x
  2. Step 2: Convert to fraction form
    20,860.62/31,295.56 = 6,070.70/x
  3. Step 3: Cross multiply
    20,860.62x = 31,295.56 × 6,070.70
  4. Step 4: Simplify right side
    20,860.62x = 189,985,956.09
  5. Step 5: Solve for x
    x = 189,985,956.09/20,860.62
  6. Step 6: Final answer
    x = 9,107.40

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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.