Home / 20,116.78-30,039.68-16,426.22

Finding the Fourth Proportional to 20,116.78, 30,039.68 and 16,426.22

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Solution

The fourth proportional to 20,116.78, 30,039.68 and 16,426.22 is: 24,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.78 : 30,039.68 = 16,426.22 : x
  2. Step 2: Convert to fraction form
    20,116.78/30,039.68 = 16,426.22/x
  3. Step 3: Cross multiply
    20,116.78x = 30,039.68 × 16,426.22
  4. Step 4: Simplify right side
    20,116.78x = 493,438,392.41
  5. Step 5: Solve for x
    x = 493,438,392.41/20,116.78
  6. Step 6: Final answer
    x = 24,528.70

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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.