Home / 27,620.68-38,136.18-17,013.64

Finding the Fourth Proportional to 27,620.68, 38,136.18 and 17,013.64

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Solution

The fourth proportional to 27,620.68, 38,136.18 and 17,013.64 is: 23,490.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.68 : 38,136.18 = 17,013.64 : x
  2. Step 2: Convert to fraction form
    27,620.68/38,136.18 = 17,013.64/x
  3. Step 3: Cross multiply
    27,620.68x = 38,136.18 × 17,013.64
  4. Step 4: Simplify right side
    27,620.68x = 648,835,237.50
  5. Step 5: Solve for x
    x = 648,835,237.50/27,620.68
  6. Step 6: Final answer
    x = 23,490.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.