Home / 43,225.38-64,843.47-13,638.87

Finding the Fourth Proportional to 43,225.38, 64,843.47 and 13,638.87

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Solution

The fourth proportional to 43,225.38, 64,843.47 and 13,638.87 is: 20,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,225.38 : 64,843.47 = 13,638.87 : x
  2. Step 2: Convert to fraction form
    43,225.38/64,843.47 = 13,638.87/x
  3. Step 3: Cross multiply
    43,225.38x = 64,843.47 × 13,638.87
  4. Step 4: Simplify right side
    43,225.38x = 884,391,657.68
  5. Step 5: Solve for x
    x = 884,391,657.68/43,225.38
  6. Step 6: Final answer
    x = 20,460.01

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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.