Home / 19,031.90-28,676.27-15,772.57

Finding the Fourth Proportional to 19,031.90, 28,676.27 and 15,772.57

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Solution

The fourth proportional to 19,031.90, 28,676.27 and 15,772.57 is: 23,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.90 : 28,676.27 = 15,772.57 : x
  2. Step 2: Convert to fraction form
    19,031.90/28,676.27 = 15,772.57/x
  3. Step 3: Cross multiply
    19,031.90x = 28,676.27 × 15,772.57
  4. Step 4: Simplify right side
    19,031.90x = 452,298,443.65
  5. Step 5: Solve for x
    x = 452,298,443.65/19,031.90
  6. Step 6: Final answer
    x = 23,765.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.