Home / 27,137.88-37,449.18-15,807.72

Finding the Fourth Proportional to 27,137.88, 37,449.18 and 15,807.72

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Solution

The fourth proportional to 27,137.88, 37,449.18 and 15,807.72 is: 21,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,137.88 : 37,449.18 = 15,807.72 : x
  2. Step 2: Convert to fraction form
    27,137.88/37,449.18 = 15,807.72/x
  3. Step 3: Cross multiply
    27,137.88x = 37,449.18 × 15,807.72
  4. Step 4: Simplify right side
    27,137.88x = 591,986,151.67
  5. Step 5: Solve for x
    x = 591,986,151.67/27,137.88
  6. Step 6: Final answer
    x = 21,814.02

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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.