Home / 27,863.02-38,451.64-15,287.77

Finding the Fourth Proportional to 27,863.02, 38,451.64 and 15,287.77

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Solution

The fourth proportional to 27,863.02, 38,451.64 and 15,287.77 is: 21,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,863.02 : 38,451.64 = 15,287.77 : x
  2. Step 2: Convert to fraction form
    27,863.02/38,451.64 = 15,287.77/x
  3. Step 3: Cross multiply
    27,863.02x = 38,451.64 × 15,287.77
  4. Step 4: Simplify right side
    27,863.02x = 587,839,650.66
  5. Step 5: Solve for x
    x = 587,839,650.66/27,863.02
  6. Step 6: Final answer
    x = 21,097.49

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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.