Home / 20,182.40-30,273.60-5,590.40

Finding the Fourth Proportional to 20,182.40, 30,273.60 and 5,590.40

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Solution

The fourth proportional to 20,182.40, 30,273.60 and 5,590.40 is: 8,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.40 : 30,273.60 = 5,590.40 : x
  2. Step 2: Convert to fraction form
    20,182.40/30,273.60 = 5,590.40/x
  3. Step 3: Cross multiply
    20,182.40x = 30,273.60 × 5,590.40
  4. Step 4: Simplify right side
    20,182.40x = 169,241,533.44
  5. Step 5: Solve for x
    x = 169,241,533.44/20,182.40
  6. Step 6: Final answer
    x = 8,385.60

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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.