Home / 20,167.10-30,256.81-10,313.30

Finding the Fourth Proportional to 20,167.10, 30,256.81 and 10,313.30

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Solution

The fourth proportional to 20,167.10, 30,256.81 and 10,313.30 is: 15,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.10 : 30,256.81 = 10,313.30 : x
  2. Step 2: Convert to fraction form
    20,167.10/30,256.81 = 10,313.30/x
  3. Step 3: Cross multiply
    20,167.10x = 30,256.81 × 10,313.30
  4. Step 4: Simplify right side
    20,167.10x = 312,047,608.43
  5. Step 5: Solve for x
    x = 312,047,608.43/20,167.10
  6. Step 6: Final answer
    x = 15,473.10

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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.