Home / 20,372.47-30,555.05-5,580.14

Finding the Fourth Proportional to 20,372.47, 30,555.05 and 5,580.14

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Solution

The fourth proportional to 20,372.47, 30,555.05 and 5,580.14 is: 8,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.47 : 30,555.05 = 5,580.14 : x
  2. Step 2: Convert to fraction form
    20,372.47/30,555.05 = 5,580.14/x
  3. Step 3: Cross multiply
    20,372.47x = 30,555.05 × 5,580.14
  4. Step 4: Simplify right side
    20,372.47x = 170,501,276.03
  5. Step 5: Solve for x
    x = 170,501,276.03/20,372.47
  6. Step 6: Final answer
    x = 8,369.20

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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.