Home / 36,897.20-50,920.08-20,765.60

Finding the Fourth Proportional to 36,897.20, 50,920.08 and 20,765.60

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Solution

The fourth proportional to 36,897.20, 50,920.08 and 20,765.60 is: 28,657.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,897.20 : 50,920.08 = 20,765.60 : x
  2. Step 2: Convert to fraction form
    36,897.20/50,920.08 = 20,765.60/x
  3. Step 3: Cross multiply
    36,897.20x = 50,920.08 × 20,765.60
  4. Step 4: Simplify right side
    36,897.20x = 1,057,386,013.25
  5. Step 5: Solve for x
    x = 1,057,386,013.25/36,897.20
  6. Step 6: Final answer
    x = 28,657.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.