Home / 38,281.88-57,339.69-18,518.99

Finding the Fourth Proportional to 38,281.88, 57,339.69 and 18,518.99

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Solution

The fourth proportional to 38,281.88, 57,339.69 and 18,518.99 is: 27,738.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,281.88 : 57,339.69 = 18,518.99 : x
  2. Step 2: Convert to fraction form
    38,281.88/57,339.69 = 18,518.99/x
  3. Step 3: Cross multiply
    38,281.88x = 57,339.69 × 18,518.99
  4. Step 4: Simplify right side
    38,281.88x = 1,061,872,859.01
  5. Step 5: Solve for x
    x = 1,061,872,859.01/38,281.88
  6. Step 6: Final answer
    x = 27,738.27

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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.