Home / 28,136.10-42,216.45-10,601.82

Finding the Fourth Proportional to 28,136.10, 42,216.45 and 10,601.82

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Solution

The fourth proportional to 28,136.10, 42,216.45 and 10,601.82 is: 15,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.10 : 42,216.45 = 10,601.82 : x
  2. Step 2: Convert to fraction form
    28,136.10/42,216.45 = 10,601.82/x
  3. Step 3: Cross multiply
    28,136.10x = 42,216.45 × 10,601.82
  4. Step 4: Simplify right side
    28,136.10x = 447,571,349.74
  5. Step 5: Solve for x
    x = 447,571,349.74/28,136.10
  6. Step 6: Final answer
    x = 15,907.37

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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.