Home / 27,136.79-40,635.08-18,729.24

Finding the Fourth Proportional to 27,136.79, 40,635.08 and 18,729.24

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Solution

The fourth proportional to 27,136.79, 40,635.08 and 18,729.24 is: 28,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.79 : 40,635.08 = 18,729.24 : x
  2. Step 2: Convert to fraction form
    27,136.79/40,635.08 = 18,729.24/x
  3. Step 3: Cross multiply
    27,136.79x = 40,635.08 × 18,729.24
  4. Step 4: Simplify right side
    27,136.79x = 761,064,072.09
  5. Step 5: Solve for x
    x = 761,064,072.09/27,136.79
  6. Step 6: Final answer
    x = 28,045.48

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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.