Home / 28,360.26-42,514.10-12,556.87

Finding the Fourth Proportional to 28,360.26, 42,514.10 and 12,556.87

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Solution

The fourth proportional to 28,360.26, 42,514.10 and 12,556.87 is: 18,823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.26 : 42,514.10 = 12,556.87 : x
  2. Step 2: Convert to fraction form
    28,360.26/42,514.10 = 12,556.87/x
  3. Step 3: Cross multiply
    28,360.26x = 42,514.10 × 12,556.87
  4. Step 4: Simplify right side
    28,360.26x = 533,844,026.87
  5. Step 5: Solve for x
    x = 533,844,026.87/28,360.26
  6. Step 6: Final answer
    x = 18,823.66

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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.