Home / 20,869.55-31,304.39-6,078.84

Finding the Fourth Proportional to 20,869.55, 31,304.39 and 6,078.84

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Solution

The fourth proportional to 20,869.55, 31,304.39 and 6,078.84 is: 9,118.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.55 : 31,304.39 = 6,078.84 : x
  2. Step 2: Convert to fraction form
    20,869.55/31,304.39 = 6,078.84/x
  3. Step 3: Cross multiply
    20,869.55x = 31,304.39 × 6,078.84
  4. Step 4: Simplify right side
    20,869.55x = 190,294,264.52
  5. Step 5: Solve for x
    x = 190,294,264.52/20,869.55
  6. Step 6: Final answer
    x = 9,118.27

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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.