Home / 20,089.62-30,130.99-5,298.68

Finding the Fourth Proportional to 20,089.62, 30,130.99 and 5,298.68

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Solution

The fourth proportional to 20,089.62, 30,130.99 and 5,298.68 is: 7,947.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.62 : 30,130.99 = 5,298.68 : x
  2. Step 2: Convert to fraction form
    20,089.62/30,130.99 = 5,298.68/x
  3. Step 3: Cross multiply
    20,089.62x = 30,130.99 × 5,298.68
  4. Step 4: Simplify right side
    20,089.62x = 159,654,536.17
  5. Step 5: Solve for x
    x = 159,654,536.17/20,089.62
  6. Step 6: Final answer
    x = 7,947.12

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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.