Home / 27,759.18-38,308.66-15,820.59

Finding the Fourth Proportional to 27,759.18, 38,308.66 and 15,820.59

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Solution

The fourth proportional to 27,759.18, 38,308.66 and 15,820.59 is: 21,832.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759.18 : 38,308.66 = 15,820.59 : x
  2. Step 2: Convert to fraction form
    27,759.18/38,308.66 = 15,820.59/x
  3. Step 3: Cross multiply
    27,759.18x = 38,308.66 × 15,820.59
  4. Step 4: Simplify right side
    27,759.18x = 606,065,707.42
  5. Step 5: Solve for x
    x = 606,065,707.42/27,759.18
  6. Step 6: Final answer
    x = 21,832.98

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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.