Home / 20,089.16-30,132.49-5,297.75

Finding the Fourth Proportional to 20,089.16, 30,132.49 and 5,297.75

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Solution

The fourth proportional to 20,089.16, 30,132.49 and 5,297.75 is: 7,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.16 : 30,132.49 = 5,297.75 : x
  2. Step 2: Convert to fraction form
    20,089.16/30,132.49 = 5,297.75/x
  3. Step 3: Cross multiply
    20,089.16x = 30,132.49 × 5,297.75
  4. Step 4: Simplify right side
    20,089.16x = 159,634,398.90
  5. Step 5: Solve for x
    x = 159,634,398.90/20,089.16
  6. Step 6: Final answer
    x = 7,946.30

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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.