Home / 37,021.80-55,507.98-20,389.70

Finding the Fourth Proportional to 37,021.80, 55,507.98 and 20,389.70

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Solution

The fourth proportional to 37,021.80, 55,507.98 and 20,389.70 is: 30,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,021.80 : 55,507.98 = 20,389.70 : x
  2. Step 2: Convert to fraction form
    37,021.80/55,507.98 = 20,389.70/x
  3. Step 3: Cross multiply
    37,021.80x = 55,507.98 × 20,389.70
  4. Step 4: Simplify right side
    37,021.80x = 1,131,791,059.81
  5. Step 5: Solve for x
    x = 1,131,791,059.81/37,021.80
  6. Step 6: Final answer
    x = 30,570.94

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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.