Home / 28,136.44-42,192.36-13,349.60

Finding the Fourth Proportional to 28,136.44, 42,192.36 and 13,349.60

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Solution

The fourth proportional to 28,136.44, 42,192.36 and 13,349.60 is: 20,018.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.44 : 42,192.36 = 13,349.60 : x
  2. Step 2: Convert to fraction form
    28,136.44/42,192.36 = 13,349.60/x
  3. Step 3: Cross multiply
    28,136.44x = 42,192.36 × 13,349.60
  4. Step 4: Simplify right side
    28,136.44x = 563,251,129.06
  5. Step 5: Solve for x
    x = 563,251,129.06/28,136.44
  6. Step 6: Final answer
    x = 20,018.56

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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.