Home / 57,830.72-86,746.68-20,383.81

Finding the Fourth Proportional to 57,830.72, 86,746.68 and 20,383.81

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Solution

The fourth proportional to 57,830.72, 86,746.68 and 20,383.81 is: 30,575.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,830.72 : 86,746.68 = 20,383.81 : x
  2. Step 2: Convert to fraction form
    57,830.72/86,746.68 = 20,383.81/x
  3. Step 3: Cross multiply
    57,830.72x = 86,746.68 × 20,383.81
  4. Step 4: Simplify right side
    57,830.72x = 1,768,227,626.38
  5. Step 5: Solve for x
    x = 1,768,227,626.38/57,830.72
  6. Step 6: Final answer
    x = 30,575.93

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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.