Home / 27,451.53-37,881.02-15,515.98

Finding the Fourth Proportional to 27,451.53, 37,881.02 and 15,515.98

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Solution

The fourth proportional to 27,451.53, 37,881.02 and 15,515.98 is: 21,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,451.53 : 37,881.02 = 15,515.98 : x
  2. Step 2: Convert to fraction form
    27,451.53/37,881.02 = 15,515.98/x
  3. Step 3: Cross multiply
    27,451.53x = 37,881.02 × 15,515.98
  4. Step 4: Simplify right side
    27,451.53x = 587,761,092.79
  5. Step 5: Solve for x
    x = 587,761,092.79/27,451.53
  6. Step 6: Final answer
    x = 21,410.87

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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.