Home / 20,164.90-30,235.52-6,120.70

Finding the Fourth Proportional to 20,164.90, 30,235.52 and 6,120.70

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Solution

The fourth proportional to 20,164.90, 30,235.52 and 6,120.70 is: 9,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.90 : 30,235.52 = 6,120.70 : x
  2. Step 2: Convert to fraction form
    20,164.90/30,235.52 = 6,120.70/x
  3. Step 3: Cross multiply
    20,164.90x = 30,235.52 × 6,120.70
  4. Step 4: Simplify right side
    20,164.90x = 185,062,547.26
  5. Step 5: Solve for x
    x = 185,062,547.26/20,164.90
  6. Step 6: Final answer
    x = 9,177.46

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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.