Home / 27,860.90-38,451.20-19,360.76

Finding the Fourth Proportional to 27,860.90, 38,451.20 and 19,360.76

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Solution

The fourth proportional to 27,860.90, 38,451.20 and 19,360.76 is: 26,720.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.90 : 38,451.20 = 19,360.76 : x
  2. Step 2: Convert to fraction form
    27,860.90/38,451.20 = 19,360.76/x
  3. Step 3: Cross multiply
    27,860.90x = 38,451.20 × 19,360.76
  4. Step 4: Simplify right side
    27,860.90x = 744,444,165.85
  5. Step 5: Solve for x
    x = 744,444,165.85/27,860.90
  6. Step 6: Final answer
    x = 26,720.04

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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.