Home / 20,154.96-30,239.16-7,010.64

Finding the Fourth Proportional to 20,154.96, 30,239.16 and 7,010.64

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Solution

The fourth proportional to 20,154.96, 30,239.16 and 7,010.64 is: 10,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.96 : 30,239.16 = 7,010.64 : x
  2. Step 2: Convert to fraction form
    20,154.96/30,239.16 = 7,010.64/x
  3. Step 3: Cross multiply
    20,154.96x = 30,239.16 × 7,010.64
  4. Step 4: Simplify right side
    20,154.96x = 211,995,864.66
  5. Step 5: Solve for x
    x = 211,995,864.66/20,154.96
  6. Step 6: Final answer
    x = 10,518.30

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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.