Home / 27,727.55-38,270.90-15,797.98

Finding the Fourth Proportional to 27,727.55, 38,270.90 and 15,797.98

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Solution

The fourth proportional to 27,727.55, 38,270.90 and 15,797.98 is: 21,805.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,727.55 : 38,270.90 = 15,797.98 : x
  2. Step 2: Convert to fraction form
    27,727.55/38,270.90 = 15,797.98/x
  3. Step 3: Cross multiply
    27,727.55x = 38,270.90 × 15,797.98
  4. Step 4: Simplify right side
    27,727.55x = 604,602,912.78
  5. Step 5: Solve for x
    x = 604,602,912.78/27,727.55
  6. Step 6: Final answer
    x = 21,805.13

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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.