Home / 28,122.55-42,136.43-16,995.27

Finding the Fourth Proportional to 28,122.55, 42,136.43 and 16,995.27

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Solution

The fourth proportional to 28,122.55, 42,136.43 and 16,995.27 is: 25,464.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.55 : 42,136.43 = 16,995.27 : x
  2. Step 2: Convert to fraction form
    28,122.55/42,136.43 = 16,995.27/x
  3. Step 3: Cross multiply
    28,122.55x = 42,136.43 × 16,995.27
  4. Step 4: Simplify right side
    28,122.55x = 716,120,047.17
  5. Step 5: Solve for x
    x = 716,120,047.17/28,122.55
  6. Step 6: Final answer
    x = 25,464.27

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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.