Home / 20,152.10-30,206.55-7,667.30

Finding the Fourth Proportional to 20,152.10, 30,206.55 and 7,667.30

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Solution

The fourth proportional to 20,152.10, 30,206.55 and 7,667.30 is: 11,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.10 : 30,206.55 = 7,667.30 : x
  2. Step 2: Convert to fraction form
    20,152.10/30,206.55 = 7,667.30/x
  3. Step 3: Cross multiply
    20,152.10x = 30,206.55 × 7,667.30
  4. Step 4: Simplify right side
    20,152.10x = 231,602,680.82
  5. Step 5: Solve for x
    x = 231,602,680.82/20,152.10
  6. Step 6: Final answer
    x = 11,492.73

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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.