Home / 20,723.42-28,598.32-11,291.99

Finding the Fourth Proportional to 20,723.42, 28,598.32 and 11,291.99

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Solution

The fourth proportional to 20,723.42, 28,598.32 and 11,291.99 is: 15,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.42 : 28,598.32 = 11,291.99 : x
  2. Step 2: Convert to fraction form
    20,723.42/28,598.32 = 11,291.99/x
  3. Step 3: Cross multiply
    20,723.42x = 28,598.32 × 11,291.99
  4. Step 4: Simplify right side
    20,723.42x = 322,931,772.24
  5. Step 5: Solve for x
    x = 322,931,772.24/20,723.42
  6. Step 6: Final answer
    x = 15,582.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.