Home / 21,590.55-29,743.91-20,594.05

Finding the Fourth Proportional to 21,590.55, 29,743.91 and 20,594.05

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Solution

The fourth proportional to 21,590.55, 29,743.91 and 20,594.05 is: 28,371.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.55 : 29,743.91 = 20,594.05 : x
  2. Step 2: Convert to fraction form
    21,590.55/29,743.91 = 20,594.05/x
  3. Step 3: Cross multiply
    21,590.55x = 29,743.91 × 20,594.05
  4. Step 4: Simplify right side
    21,590.55x = 612,547,469.63
  5. Step 5: Solve for x
    x = 612,547,469.63/21,590.55
  6. Step 6: Final answer
    x = 28,371.09

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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.