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Finding the Fourth Proportional to 27,350.40, 37,738.80 and 15,412.80

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Solution

The fourth proportional to 27,350.40, 37,738.80 and 15,412.80 is: 21,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,350.40 : 37,738.80 = 15,412.80 : x
  2. Step 2: Convert to fraction form
    27,350.40/37,738.80 = 15,412.80/x
  3. Step 3: Cross multiply
    27,350.40x = 37,738.80 × 15,412.80
  4. Step 4: Simplify right side
    27,350.40x = 581,660,576.64
  5. Step 5: Solve for x
    x = 581,660,576.64/27,350.40
  6. Step 6: Final answer
    x = 21,266.99

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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.