Home / 19,689.38-27,171.35-12,625.37

Finding the Fourth Proportional to 19,689.38, 27,171.35 and 12,625.37

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Solution

The fourth proportional to 19,689.38, 27,171.35 and 12,625.37 is: 17,423.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.38 : 27,171.35 = 12,625.37 : x
  2. Step 2: Convert to fraction form
    19,689.38/27,171.35 = 12,625.37/x
  3. Step 3: Cross multiply
    19,689.38x = 27,171.35 × 12,625.37
  4. Step 4: Simplify right side
    19,689.38x = 343,048,148.17
  5. Step 5: Solve for x
    x = 343,048,148.17/19,689.38
  6. Step 6: Final answer
    x = 17,423.01

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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.