Home / 20,897.65-28,840.56-11,468.03

Finding the Fourth Proportional to 20,897.65, 28,840.56 and 11,468.03

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Solution

The fourth proportional to 20,897.65, 28,840.56 and 11,468.03 is: 15,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.65 : 28,840.56 = 11,468.03 : x
  2. Step 2: Convert to fraction form
    20,897.65/28,840.56 = 11,468.03/x
  3. Step 3: Cross multiply
    20,897.65x = 28,840.56 × 11,468.03
  4. Step 4: Simplify right side
    20,897.65x = 330,744,407.30
  5. Step 5: Solve for x
    x = 330,744,407.30/20,897.65
  6. Step 6: Final answer
    x = 15,826.87

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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.