Home / 27,136.54-40,634.70-18,728.99

Finding the Fourth Proportional to 27,136.54, 40,634.70 and 18,728.99

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Solution

The fourth proportional to 27,136.54, 40,634.70 and 18,728.99 is: 28,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.54 : 40,634.70 = 18,728.99 : x
  2. Step 2: Convert to fraction form
    27,136.54/40,634.70 = 18,728.99/x
  3. Step 3: Cross multiply
    27,136.54x = 40,634.70 × 18,728.99
  4. Step 4: Simplify right side
    27,136.54x = 761,047,038.36
  5. Step 5: Solve for x
    x = 761,047,038.36/27,136.54
  6. Step 6: Final answer
    x = 28,045.10

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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.