Home / 20,870.99-31,306.55-6,080.27

Finding the Fourth Proportional to 20,870.99, 31,306.55 and 6,080.27

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Solution

The fourth proportional to 20,870.99, 31,306.55 and 6,080.27 is: 9,120.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,870.99 : 31,306.55 = 6,080.27 : x
  2. Step 2: Convert to fraction form
    20,870.99/31,306.55 = 6,080.27/x
  3. Step 3: Cross multiply
    20,870.99x = 31,306.55 × 6,080.27
  4. Step 4: Simplify right side
    20,870.99x = 190,352,276.77
  5. Step 5: Solve for x
    x = 190,352,276.77/20,870.99
  6. Step 6: Final answer
    x = 9,120.42

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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.