Home / 36,136.10-49,858.36-20,818.90

Finding the Fourth Proportional to 36,136.10, 49,858.36 and 20,818.90

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Solution

The fourth proportional to 36,136.10, 49,858.36 and 20,818.90 is: 28,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,136.10 : 49,858.36 = 20,818.90 : x
  2. Step 2: Convert to fraction form
    36,136.10/49,858.36 = 20,818.90/x
  3. Step 3: Cross multiply
    36,136.10x = 49,858.36 × 20,818.90
  4. Step 4: Simplify right side
    36,136.10x = 1,037,996,034.31
  5. Step 5: Solve for x
    x = 1,037,996,034.31/36,136.10
  6. Step 6: Final answer
    x = 28,724.63

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1.5x scale

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.