Home / 20,072.52-30,108.12-9,547.56

Finding the Fourth Proportional to 20,072.52, 30,108.12 and 9,547.56

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Solution

The fourth proportional to 20,072.52, 30,108.12 and 9,547.56 is: 14,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.52 : 30,108.12 = 9,547.56 : x
  2. Step 2: Convert to fraction form
    20,072.52/30,108.12 = 9,547.56/x
  3. Step 3: Cross multiply
    20,072.52x = 30,108.12 × 9,547.56
  4. Step 4: Simplify right side
    20,072.52x = 287,459,082.19
  5. Step 5: Solve for x
    x = 287,459,082.19/20,072.52
  6. Step 6: Final answer
    x = 14,321.03

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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.