Home / 28,998.78-43,514.58-12,357.06

Finding the Fourth Proportional to 28,998.78, 43,514.58 and 12,357.06

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Solution

The fourth proportional to 28,998.78, 43,514.58 and 12,357.06 is: 18,542.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.78 : 43,514.58 = 12,357.06 : x
  2. Step 2: Convert to fraction form
    28,998.78/43,514.58 = 12,357.06/x
  3. Step 3: Cross multiply
    28,998.78x = 43,514.58 × 12,357.06
  4. Step 4: Simplify right side
    28,998.78x = 537,712,275.93
  5. Step 5: Solve for x
    x = 537,712,275.93/28,998.78
  6. Step 6: Final answer
    x = 18,542.58

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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.