Home / 27,457.58-37,878.36-19,891.64

Finding the Fourth Proportional to 27,457.58, 37,878.36 and 19,891.64

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Solution

The fourth proportional to 27,457.58, 37,878.36 and 19,891.64 is: 27,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,457.58 : 37,878.36 = 19,891.64 : x
  2. Step 2: Convert to fraction form
    27,457.58/37,878.36 = 19,891.64/x
  3. Step 3: Cross multiply
    27,457.58x = 37,878.36 × 19,891.64
  4. Step 4: Simplify right side
    27,457.58x = 753,462,700.91
  5. Step 5: Solve for x
    x = 753,462,700.91/27,457.58
  6. Step 6: Final answer
    x = 27,440.97

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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.