Home / 17,031.69-25,499.70-12,858.57

Finding the Fourth Proportional to 17,031.69, 25,499.70 and 12,858.57

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Solution

The fourth proportional to 17,031.69, 25,499.70 and 12,858.57 is: 19,251.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,031.69 : 25,499.70 = 12,858.57 : x
  2. Step 2: Convert to fraction form
    17,031.69/25,499.70 = 12,858.57/x
  3. Step 3: Cross multiply
    17,031.69x = 25,499.70 × 12,858.57
  4. Step 4: Simplify right side
    17,031.69x = 327,889,677.43
  5. Step 5: Solve for x
    x = 327,889,677.43/17,031.69
  6. Step 6: Final answer
    x = 19,251.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.