Home / 25,021.88-34,530.20-15,590.45

Finding the Fourth Proportional to 25,021.88, 34,530.20 and 15,590.45

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Solution

The fourth proportional to 25,021.88, 34,530.20 and 15,590.45 is: 21,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,021.88 : 34,530.20 = 15,590.45 : x
  2. Step 2: Convert to fraction form
    25,021.88/34,530.20 = 15,590.45/x
  3. Step 3: Cross multiply
    25,021.88x = 34,530.20 × 15,590.45
  4. Step 4: Simplify right side
    25,021.88x = 538,341,105.99
  5. Step 5: Solve for x
    x = 538,341,105.99/25,021.88
  6. Step 6: Final answer
    x = 21,514.82

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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.