Home / 20,031.03-30,064.70-10,678.89

Finding the Fourth Proportional to 20,031.03, 30,064.70 and 10,678.89

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Solution

The fourth proportional to 20,031.03, 30,064.70 and 10,678.89 is: 16,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.03 : 30,064.70 = 10,678.89 : x
  2. Step 2: Convert to fraction form
    20,031.03/30,064.70 = 10,678.89/x
  3. Step 3: Cross multiply
    20,031.03x = 30,064.70 × 10,678.89
  4. Step 4: Simplify right side
    20,031.03x = 321,057,570.79
  5. Step 5: Solve for x
    x = 321,057,570.79/20,031.03
  6. Step 6: Final answer
    x = 16,028.01

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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.