Home / 20,089.95-30,140.99-7,613.79

Finding the Fourth Proportional to 20,089.95, 30,140.99 and 7,613.79

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Solution

The fourth proportional to 20,089.95, 30,140.99 and 7,613.79 is: 11,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.95 : 30,140.99 = 7,613.79 : x
  2. Step 2: Convert to fraction form
    20,089.95/30,140.99 = 7,613.79/x
  3. Step 3: Cross multiply
    20,089.95x = 30,140.99 × 7,613.79
  4. Step 4: Simplify right side
    20,089.95x = 229,487,168.25
  5. Step 5: Solve for x
    x = 229,487,168.25/20,089.95
  6. Step 6: Final answer
    x = 11,422.98

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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.