Home / 25,180.58-37,780.19-10,390.79

Finding the Fourth Proportional to 25,180.58, 37,780.19 and 10,390.79

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Solution

The fourth proportional to 25,180.58, 37,780.19 and 10,390.79 is: 15,590.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,180.58 : 37,780.19 = 10,390.79 : x
  2. Step 2: Convert to fraction form
    25,180.58/37,780.19 = 10,390.79/x
  3. Step 3: Cross multiply
    25,180.58x = 37,780.19 × 10,390.79
  4. Step 4: Simplify right side
    25,180.58x = 392,566,020.45
  5. Step 5: Solve for x
    x = 392,566,020.45/25,180.58
  6. Step 6: Final answer
    x = 15,590.03

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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.