Home / 28,308.83-39,067.07-15,562.99

Finding the Fourth Proportional to 28,308.83, 39,067.07 and 15,562.99

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Solution

The fourth proportional to 28,308.83, 39,067.07 and 15,562.99 is: 21,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.83 : 39,067.07 = 15,562.99 : x
  2. Step 2: Convert to fraction form
    28,308.83/39,067.07 = 15,562.99/x
  3. Step 3: Cross multiply
    28,308.83x = 39,067.07 × 15,562.99
  4. Step 4: Simplify right side
    28,308.83x = 608,000,390.76
  5. Step 5: Solve for x
    x = 608,000,390.76/28,308.83
  6. Step 6: Final answer
    x = 21,477.41

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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.