Home / 20,452.40-30,667.80-7,305.20

Finding the Fourth Proportional to 20,452.40, 30,667.80 and 7,305.20

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Solution

The fourth proportional to 20,452.40, 30,667.80 and 7,305.20 is: 10,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.40 : 30,667.80 = 7,305.20 : x
  2. Step 2: Convert to fraction form
    20,452.40/30,667.80 = 7,305.20/x
  3. Step 3: Cross multiply
    20,452.40x = 30,667.80 × 7,305.20
  4. Step 4: Simplify right side
    20,452.40x = 224,034,412.56
  5. Step 5: Solve for x
    x = 224,034,412.56/20,452.40
  6. Step 6: Final answer
    x = 10,953.94

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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.