Home / 27,431.87-37,872.30-17,368.94

Finding the Fourth Proportional to 27,431.87, 37,872.30 and 17,368.94

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Solution

The fourth proportional to 27,431.87, 37,872.30 and 17,368.94 is: 23,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,431.87 : 37,872.30 = 17,368.94 : x
  2. Step 2: Convert to fraction form
    27,431.87/37,872.30 = 17,368.94/x
  3. Step 3: Cross multiply
    27,431.87x = 37,872.30 × 17,368.94
  4. Step 4: Simplify right side
    27,431.87x = 657,801,689.10
  5. Step 5: Solve for x
    x = 657,801,689.10/27,431.87
  6. Step 6: Final answer
    x = 23,979.47

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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.