Home / 37,309.08-55,982.58-20,665.80

Finding the Fourth Proportional to 37,309.08, 55,982.58 and 20,665.80

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Solution

The fourth proportional to 37,309.08, 55,982.58 and 20,665.80 is: 31,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,309.08 : 55,982.58 = 20,665.80 : x
  2. Step 2: Convert to fraction form
    37,309.08/55,982.58 = 20,665.80/x
  3. Step 3: Cross multiply
    37,309.08x = 55,982.58 × 20,665.80
  4. Step 4: Simplify right side
    37,309.08x = 1,156,924,801.76
  5. Step 5: Solve for x
    x = 1,156,924,801.76/37,309.08
  6. Step 6: Final answer
    x = 31,009.20

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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.