Home / 28,705.90-39,614.49-15,959.86

Finding the Fourth Proportional to 28,705.90, 39,614.49 and 15,959.86

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Solution

The fourth proportional to 28,705.90, 39,614.49 and 15,959.86 is: 22,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.90 : 39,614.49 = 15,959.86 : x
  2. Step 2: Convert to fraction form
    28,705.90/39,614.49 = 15,959.86/x
  3. Step 3: Cross multiply
    28,705.90x = 39,614.49 × 15,959.86
  4. Step 4: Simplify right side
    28,705.90x = 632,241,714.37
  5. Step 5: Solve for x
    x = 632,241,714.37/28,705.90
  6. Step 6: Final answer
    x = 22,024.80

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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.