Home / 20,159.90-30,228.03-6,115.70

Finding the Fourth Proportional to 20,159.90, 30,228.03 and 6,115.70

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Solution

The fourth proportional to 20,159.90, 30,228.03 and 6,115.70 is: 9,169.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.90 : 30,228.03 = 6,115.70 : x
  2. Step 2: Convert to fraction form
    20,159.90/30,228.03 = 6,115.70/x
  3. Step 3: Cross multiply
    20,159.90x = 30,228.03 × 6,115.70
  4. Step 4: Simplify right side
    20,159.90x = 184,865,563.07
  5. Step 5: Solve for x
    x = 184,865,563.07/20,159.90
  6. Step 6: Final answer
    x = 9,169.96

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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.