Home / 20,119.78-30,044.15-16,429.22

Finding the Fourth Proportional to 20,119.78, 30,044.15 and 16,429.22

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Solution

The fourth proportional to 20,119.78, 30,044.15 and 16,429.22 is: 24,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.78 : 30,044.15 = 16,429.22 : x
  2. Step 2: Convert to fraction form
    20,119.78/30,044.15 = 16,429.22/x
  3. Step 3: Cross multiply
    20,119.78x = 30,044.15 × 16,429.22
  4. Step 4: Simplify right side
    20,119.78x = 493,601,950.06
  5. Step 5: Solve for x
    x = 493,601,950.06/20,119.78
  6. Step 6: Final answer
    x = 24,533.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.